[squash] misc updates

 Version 3.3.1-5_ianmacd.
 New kernel and recovery_dtbo for ASG8 firmware.
 Version 3.3.1-4_ianmacd.
 New kernel for ASF3 firmware.
 Version 3.3.1-3_ianmacd.
 New kernel and recovery_dtbo for ASE7 firmware.
 Remove TW_DEVICE_VERSION in accordance with official policy.
 Bump TW_DEVICE_VERSION for 3.3.1-2_ianmacd.
 Remove unnecessary parameters.
 Fix incorrect values and comment out unnecessary parameters.
 Add the ability to make an image back-up of /product.
 Bump TW_DEVICE_VERSION for 3.3.1-1_ianmacd.
 Fix linker warnings when binaries are executed while /system is mounted.
 Set PLATFORM_SECURITY_PATCH to 2019-05-16.
 Bump TW_DEVICE_VERSION to 2_ianmacd.
 Updated prebuilt kernel compiled from ASD5 source code.
 Rename confusingly named prebuilt kernel. It's not gzipped.
 Build with prebuilt (stock) recovery_dtbo included.
 Make default brightness 2/3 of maximum. 1/2 was too dim.
 Add support for mounting and backing up /product.
 Add missing init.recovery.exynos9820.rc
 TARGET_2ND_ARCH_VARIANT := armv8-a

BoardConfig.mk

@@ -1,3 +1,5 @@
+# Version 3.3.1-5_ianmacd.
+
 # Architecture
 TARGET_ARCH := arm64
 TARGET_ARCH_VARIANT := armv8-a
@@ -7,7 +9,7 @@ TARGET_CPU_VARIANT := cortex-a53
 TARGET_CPU_SMP := true
 
 TARGET_2ND_ARCH := arm
-TARGET_2ND_ARCH_VARIANT := armv7-a-neon
+TARGET_2ND_ARCH_VARIANT := armv8-a
 TARGET_2ND_CPU_ABI := armeabi-v7a
 TARGET_2ND_CPU_ABI2 := armeabi
 TARGET_2ND_CPU_VARIANT := cortex-a53
@@ -30,8 +32,9 @@ TARGET_NO_RADIOIMAGE := true
 # Kernel
 BOARD_KERNEL_BASE := 0x10000000
 BOARD_KERNEL_PAGESIZE := 2048
-TARGET_PREBUILT_KERNEL := device/samsung/beyond2lte/prebuilt/Image.gz-kernel
-BOARD_MKBOOTIMG_ARGS := --kernel_offset 0x00008000 --ramdisk_offset 0x01000000 --tags_offset 0x00000100 --board SRPRI17C001RU
+TARGET_PREBUILT_KERNEL := device/samsung/beyond2lte/prebuilt/Image
+
+BOARD_MKBOOTIMG_ARGS := --kernel_offset 0x00008000 --ramdisk_offset 0x01000000 --tags_offset 0x00000100 --header_version 1 --board SRPRI17C001RU
 
 # Platform
 TARGET_BOARD_PLATFORM := exynos5
@@ -41,12 +44,6 @@ TARGET_BOARD_PLATFORM_GPU := mali-g76
 BOARD_BOOTIMAGE_PARTITION_SIZE := 57671680
 BOARD_RECOVERYIMAGE_PARTITION_SIZE := 67633152
 BOARD_SYSTEMIMAGE_PARTITION_SIZE := 5976883200
-BOARD_USERDATAIMAGE_PARTITION_SIZE := 57089667072
-BOARD_USERDATAIMAGE_FILE_SYSTEM_TYPE := ext4
-BOARD_CACHEIMAGE_PARTITION_SIZE := 268435456
-BOARD_VENDORIMAGE_PARTITION_SIZE := 1153433600
-BOARD_DTBOIMAGE_PARTITION_SIZE := 0x0800000
-BOARD_FLASH_BLOCK_SIZE := 131072 # (BOARD_KERNEL_PAGESIZE * 64)
 
 # Filesystem
 BOARD_HAS_LARGE_FILESYSTEM := true
@@ -55,7 +52,7 @@ TARGET_USERIMAGES_USE_F2FS := true
 
 # Android Verified Boot
 BOARD_AVB_ENABLE := true
-#BOARD_AVB_RECOVERY_ADD_HASH_FOOTER_ARGS := 
+#BOARD_AVB_RECOVERY_ADD_HASH_FOOTER_ARGS :=
 ifeq ($(BOARD_AVB_ENABLE), true)
    BOARD_AVB_RECOVERY_KEY_PATH := external/avb/test/data/testkey_rsa2048.pem
    BOARD_AVB_RECOVERY_ALGORITHM := SHA256_RSA2048
@@ -75,7 +72,7 @@ RECOVERY_SDCARD_ON_DATA := true
 TARGET_RECOVERY_PIXEL_FORMAT := "ABGR_8888"
 TW_BRIGHTNESS_PATH := "/sys/class/backlight/panel/brightness"
 TW_MAX_BRIGHTNESS := 25500
-TW_DEFAULT_BRIGHTNESS := 12800
+TW_DEFAULT_BRIGHTNESS := 15300
 TW_Y_OFFSET := 142
 TW_H_OFFSET := -142
 TW_NO_REBOOT_BOOTLOADER := true
@@ -88,3 +85,6 @@ TW_USE_TOOLBOX := true
 TW_EXCLUDE_TWRPAPP := true
 TW_NO_LEGACY_PROPS := true
 BOARD_SUPPRESS_SECURE_ERASE := true
+BOARD_INCLUDE_RECOVERY_DTBO := true
+BOARD_PREBUILT_DTBOIMAGE := device/samsung/beyond2lte/prebuilt/recovery_dtbo
+PLATFORM_SECURITY_PATCH := 2019-07-31