general: add support for compiling twrp

BoardConfig.mk

@@ -32,6 +32,10 @@ BOARD_BLUETOOTH_BDROID_BUILDCFG_INCLUDE_DIR := $(DEVICE_PATH)/bluetooth
 TARGET_RECOVERY_DENSITY := hdpi
 TARGET_RECOVERY_FSTAB := $(DEVICE_PATH)/rootdir/etc/fstab.qcom
 
+ifeq ($(WITH_TWRP),true)
+	-include $(DEVICE_PATH)/twrp.mk
+endif
+
 # Miscellaneous
 TARGET_SYSTEM_PROP += $(DEVICE_PATH)/system.prop
 TARGET_EXFAT_DRIVER := sdfat

recovery/twrp.fstab

@@ -0,0 +1,14 @@
+/system		ext4	/dev/block/platform/msm_sdcc.1/by-name/system		
+/data		auto	/dev/block/platform/msm_sdcc.1/by-name/userdata		
+
+/cache		auto	/dev/block/platform/msm_sdcc.1/by-name/cache		
+/persist	ext4	/dev/block/platform/msm_sdcc.1/by-name/persist
+/efs		ext4	/dev/block/platform/msm_sdcc.1/by-name/efs		flags=display="EFS"
+/firmware-modem	emmc	/dev/block/platform/msm_sdcc.1/by-name/modem
+/firmware	emmc	/dev/block/platform/msm_sdcc.1/by-name/apnhlos
+
+/boot		emmc	/dev/block/platform/msm_sdcc.1/by-name/boot
+/recovery	emmc	/dev/block/platform/msm_sdcc.1/by-name/recovery
+/preload	ext4	/dev/block/platform/msm_sdcc.1/by-name/hidden		flags=display="Preload"
+
+/sdcard		auto	/dev/block/mmcblk1p1					flags=display="MicroSD";storage;wipeingui;removable

twrp.mk

@@ -0,0 +1,12 @@
+PRODUCT_COPY_FILES += device/samsung/rubenslte/recovery/twrp.fstab:recovery/root/etc/twrp.fstab
+
+RECOVERY_SDCARD_ON_DATA := true
+RECOVERY_VARIANT := twrp
+TARGET_RECOVERY_PIXEL_FORMAT := "RGBX_8888"
+TW_BRIGHTNESS_PATH := "/sys/class/leds/lcd-backlight/brightness"
+TW_MAX_BRIGHTNESS := 255
+TW_DEFAULT_BRIGHTNESS := 128
+TW_NO_REBOOT_BOOTLOADER := true
+TW_HAS_DOWNLOAD_MODE := true
+TW_MTP_DEVICE := "/dev/mtp_usb"
+TW_INCLUDE_CRYPTO := true