tasks: dtbo: Add support for custom dtbo generation rules

ifneq ($(TARGET_NO_KERNEL),true)

ifeq ($(strip $(BOARD_KERNEL_SEPARATED_DTBO)),true)

ifneq ($(BOARD_CUSTOM_DTBOIMG_MK),)

include $(BOARD_CUSTOM_DTBOIMG_MK)

else

MKDTIMG := $(HOST_OUT_EXECUTABLES)/mkdtimg$(HOST_EXECUTABLE_SUFFIX)

# Most specific paths must come first in possible_dtbo_dirs

$(BOARD_PREBUILT_DTBOIMAGE): $(MKDTIMG) $(INSTALLED_KERNEL_TARGET)

	$(build-dtboimage-target)

endif # BOARD_CUSTOM_DTBOIMG_MK

endif # BOARD_KERNEL_SEPARATED_DTBO

endif # TARGET_NO_KERNEL