MTK KERNEL根据项目来定义宏区分CODE

ifneq ($(CONFIG_ARCH_MTK_PROJECT),)
ARCH_MTK_PROJECT_XXX := $(subst ",,$(CONFIG_ARCH_MTK_PROJECT))
ifeq ($(ARCH_MTK_PROJECT_XXX),S5)
KBUILD_CFLAGS += -DLCM_S5_XXX
#ccflags-y += -DLCM_XXX  这种修改方法不行，具体没有研究
endif
endif