fix(boards): Suppress devicetree warning

nRF5x boards throw a spurious warning for duplicate unit-address when the devicetree gets processed

Upstream issue:  zephyrproject-rtos/zephyr#29713

Warning suppressed as per: https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html

Tested on a few nRF5x boards and i have no reason to think it would break things on the untested ones

app/boards/arm/adv360pro/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/bluemicro840/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/bt60/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/ckp/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/corneish_zen/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/glove80/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/mikoto/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/nice60/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/nice_nano/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/nrf52840_m2/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/nrfmicro/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/pillbug/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/puchi_ble/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/s40nc/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

app/boards/arm/seeeduino_xiao_ble/pre_dt_board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2024 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+# Suppresses duplicate unit-address warning at build time for power, clock, acl and flash-controller
+# https://docs.zephyrproject.org/latest/build/dts/intro-input-output.html
+
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")