Clean up AndroidKernel.mk to use dt compile in kernel

Change-Id: Ida3360a9865ef79ceb4c6a2c66d37d20ca6bbc94

AndroidKernel.mk

@@ -11,30 +11,6 @@ KERNEL_MODULES_INSTALL := system
 KERNEL_MODULES_OUT := $(TARGET_OUT)/lib/modules
 KERNEL_IMG=$(KERNEL_OUT)/arch/arm/boot/Image
 
-DTS_NAMES ?= $(shell $(PERL) -e 'while (<>) {$$a = $$1 if /CONFIG_ARCH_((?:MSM|QSD|MPQ)[a-zA-Z0-9]+)=y/; $$r = $$1 if /CONFIG_MSM_SOC_REV_(?!NONE)(\w+)=y/; $$arch = $$arch.lc("$$a$$r ") if /CONFIG_ARCH_((?:MSM|QSD|MPQ)[a-zA-Z0-9]+)=y/} print $$arch;' $(KERNEL_CONFIG))
-KERNEL_USE_OF ?= $(shell $(PERL) -e '$$of = "n"; while (<>) { if (/CONFIG_USE_OF=y/) { $$of = "y"; break; } } print $$of;' kernel/arch/arm/configs/$(KERNEL_DEFCONFIG))
-
-ifeq "$(KERNEL_USE_OF)" "y"
-DTS_FILES = $(wildcard $(TOP)/kernel/arch/arm/boot/dts/$(DTS_NAME)*.dts)
-DTS_FILE = $(lastword $(subst /, ,$(1)))
-DTB_FILE = $(addprefix $(KERNEL_OUT)/arch/arm/boot/,$(patsubst %.dts,%.dtb,$(call DTS_FILE,$(1))))
-ZIMG_FILE = $(addprefix $(KERNEL_OUT)/arch/arm/boot/,$(patsubst %.dts,%-zImage,$(call DTS_FILE,$(1))))
-KERNEL_ZIMG = $(KERNEL_OUT)/arch/arm/boot/zImage
-DTC = $(KERNEL_OUT)/scripts/dtc/dtc
-
-define append-dtb
-mkdir -p $(KERNEL_OUT)/arch/arm/boot;\
-$(foreach DTS_NAME, $(DTS_NAMES), \
-   $(foreach d, $(DTS_FILES), \
-      $(DTC) -p 1024 -O dtb -o $(call DTB_FILE,$(d)) $(d); \
-      cat $(KERNEL_ZIMG) $(call DTB_FILE,$(d)) > $(call ZIMG_FILE,$(d));))
-endef
-else
-
-define append-dtb
-endef
-endif
-
 ifeq ($(TARGET_USES_UNCOMPRESSED_KERNEL),true)
 $(info Using uncompressed kernel)
 TARGET_PREBUILT_KERNEL := $(KERNEL_OUT)/piggy
@@ -73,7 +49,6 @@ $(TARGET_PREBUILT_INT_KERNEL): $(KERNEL_OUT) $(KERNEL_CONFIG) $(KERNEL_HEADERS_I
 	$(MAKE) -C kernel O=../$(KERNEL_OUT) INSTALL_MOD_PATH=../../$(KERNEL_MODULES_INSTALL) INSTALL_MOD_STRIP=1 ARCH=arm CROSS_COMPILE=arm-eabi- modules_install
 	$(mv-modules)
 	$(clean-module-folder)
-	$(append-dtb)
 
 $(KERNEL_HEADERS_INSTALL): $(KERNEL_OUT) $(KERNEL_CONFIG)
 	$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=arm CROSS_COMPILE=arm-eabi- headers_install