configs: add mt8183_evb_ab_android defconfig

In order to support A/B on Android, we need to enable the following
options in the defconfig:
  CONFIG_CMD_AB_SELECT
  CONFIG_ANDROID_AB

Prepare for A/B support by adding a dedicated ab defconfig.

Note: this has been generated from:
      cp configs/mt8183_evb_android_defconfig \
         configs/mt8183_evb_android_ab_defconfig

Bug: https://baylibre.atlassian.net/browse/RITA-89
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
diff --git a/configs/mt8183_evb_android_ab_defconfig b/configs/mt8183_evb_android_ab_defconfig
new file mode 100644
index 0000000..a4cf4c7
--- /dev/null
+++ b/configs/mt8183_evb_android_ab_defconfig
@@ -0,0 +1,66 @@
+CONFIG_ARM=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
+CONFIG_SYS_TEXT_BASE=0x4c000000
+CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_TARGET_MT8183=y
+CONFIG_MTK_ANDROID=y
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_DEBUG_UART_BASE=0x11002000
+CONFIG_DEBUG_UART_CLOCK=26000000
+# CONFIG_PSCI_RESET is not set
+CONFIG_DEBUG_UART=y
+CONFIG_FIT=y
+# CONFIG_FIT_ENABLE_SHA256_SUPPORT is not set
+# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
+CONFIG_DEFAULT_FDT_FILE="mt8183-evb"
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_HUSH_PARSER=y
+# CONFIG_CMD_BDI is not set
+# CONFIG_CMD_CONSOLE is not set
+# CONFIG_CMD_BOOTD is not set
+# CONFIG_CMD_BOOTI is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_GO is not set
+# CONFIG_CMD_IMI is not set
+# CONFIG_CMD_XIMG is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+# CONFIG_CMD_EDITENV is not set
+# CONFIG_CMD_ENV_EXISTS is not set
+# CONFIG_CMD_CRC32 is not set
+# CONFIG_CMD_MEMORY is not set
+CONFIG_CMD_APROP=y
+CONFIG_CMD_CLK=y
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_GPT=y
+# CONFIG_RANDOM_UUID is not set
+# CONFIG_CMD_LOADB is not set
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PART=y
+# CONFIG_CMD_ITEST is not set
+# CONFIG_CMD_SOURCE is not set
+# CONFIG_CMD_SETEXPR is not set
+# CONFIG_CMD_BLOCK_CACHE is not set
+# CONFIG_CMD_MISC is not set
+CONFIG_CMD_EXT4=y
+CONFIG_DEFAULT_DEVICE_TREE="mt8183-evb"
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+# CONFIG_NET is not set
+CONFIG_CLK=y
+CONFIG_DM_GPIO=y
+# CONFIG_INPUT is not set
+CONFIG_DM_MMC=y
+# CONFIG_MMC_QUIRKS is not set
+CONFIG_MMC_MTK=y
+CONFIG_BAUDRATE=921600
+CONFIG_DM_SERIAL=y
+CONFIG_DEBUG_UART_MTK=y
+CONFIG_DEBUG_UART_ANNOUNCE=y
+CONFIG_MTK_SERIAL=y
+CONFIG_WDT=y
+CONFIG_WDT_MTK=y
+CONFIG_EXT4_WRITE=y
+# CONFIG_EFI_LOADER is not set