[Gen3] Replace PLATFORM_ID checks with HAL macros in dynalib

[keeramis]

Problem

Replace PLATFORM_ID checks in dynalib header files with HAL macros for compactness

Solution

Define a new macro based on the functionality and include it to the relevant header files through the respective makefiles

Steps to Test

Example App

Build using new platform and test with trackerm hardware:

modules$ make clean all PLATFORM=p2 MODULAR=y

References

N/A

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Completeness

• User is totes amazing for contributing!
• Contributor has signed CLA (Info here)
• Problem and Solution clearly stated
• Run unit/integration/application tests on device
• Added documentation
• Added to CHANGELOG.md after merging (add links to docs and issues)

[avtolstoy]

Let's better use same pattern as below for nanopb:

include $(PROJECT_ROOT)/hal/import.mk

[keeramis]

If I am including this in the makefile itself, I am running into multiple definition problem -

../../../build/arm/startup/startup_rtl872x.S: Assembler messages:
../../../build/arm/startup/startup_rtl872x.S:160: Warning: ignoring changed section attributes for .text
/usr/local/gcc-arm/bin/../lib/gcc/arm-none-eabi/10.2.1/../../../../arm-none-eabi/bin/ld: ../../../build/target/lwip/platform-32-m//liblwip.a(init.o): in function `lwip_init':
/Users/keerthyamisagadda/code/device-os/third_party/lwip/lwip/src/core/init.c:333: multiple definition of `lwip_init'; ../../../build/target/lwip/platform-32-m//liblwip.a(init.o):/Users/keerthyamisagadda/code/device-os/third_party/lwip/lwip/src/core/init.c:333: first defined here
/usr/local/gcc-arm/bin/../lib/gcc/arm-none-eabi/10.2.1/../../../../arm-none-eabi/bin/ld: ../../../build/target/lwip/platform-32-m//liblwip.a(def.o): in function `lwip_htons':
/Users/keerthyamisagadda/code/device-os/third_party/lwip/lwip/src/core/def.c:78: multiple definition of `lwip_htons'; ../../../build/target/lwip/platform-32-m//liblwip.a(def.o):/Users/keerthyamisagadda/code/device-os/third_party/lwip/lwip/src/core/def.c:78: first defined here
/usr/local/gcc-arm/bin/../lib/gcc/arm-none-eabi/10.2.1/../../../../arm-none-eabi/bin/ld: ../../../build/target/lwip/platform-32-m//liblwip.a(def.o): in function `lwip_htonl':
/Users/keerthyamisagadda/code/device-os/third_party/lwip/lwip/src/core/def.c:93: multiple definition of `lwip_htonl'; ../../../build/target/lwip/platform-32-m//liblwip.a(def.o):/Users/keerthyamisagadda/code/device-os/third_party/lwip/lwip/src/core/def.c:93: first defined here
/usr/local/gcc-arm/bin/../lib/gcc/arm-none-eabi/10.2.1/../../../../arm-none-eabi/bin/ld: ../../../build/target/lwip/platform-32-m//liblwip.a(def.o): in function `lwip_strnstr':

[scott-brust]

spelling nit: missing a t in platform?