scripts: follow up fix after v6.1 merge (modpost)

Fixes: 5d45950 ("kbuild: move vmlinux.o link to scripts/Makefile.vmlinux_o")

Signed-off-by: Hajime Tazaki <[email protected]>

scripts/Makefile.modpost

@@ -125,7 +125,9 @@ targets += $(output-symdump)
 $(output-symdump): $(modorder-if-needed) $(vmlinux.o-if-present) $(module.symvers-if-present) $(MODPOST) FORCE
 	$(call if_changed,modpost)
 
+ifeq ($(findstring elf,$(if $(CONFIG_OUTPUT_FORMAT),$(CONFIG_OUTPUT_FORMAT),elf)),elf)
 __modpost: $(output-symdump)
+endif
 PHONY += FORCE
 FORCE: