configs: sei510/610: android bootflow via abootimg

Activate the following Kconfig options:
* AVB       for Android Verified Boot support
* ADTIMG    for merging DTBOs
* ABOOTIMG  for extracting Android boot image

Also rework the partitioning tables:
- add a misc partition to handle BCB messages
- add a dtbo partition to store various DTBOs
- add a vbmeta partition for AVB hashes
- Merge vendor and system into the "super" partition

Note: avb support is disables by default. To activate it:
 => setenv force_avb 1;
 => saveenv;

Signed-off-by: Guillaume La Roque <glaroque@baylibre.com>
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/configs/sei610_defconfig b/configs/sei610_defconfig
index 2a6d0e5..e11f36a 100644
--- a/configs/sei610_defconfig
+++ b/configs/sei610_defconfig
@@ -20,7 +20,10 @@
 # CONFIG_CONSOLE_MUX is not set
 # CONFIG_DISPLAY_CPUINFO is not set
 CONFIG_MISC_INIT_R=y
+CONFIG_AVB_VERIFY=y
 # CONFIG_CMD_BDI is not set
+CONFIG_CMD_ADTIMG=y
+CONFIG_CMD_ABOOTIMG=y
 # CONFIG_CMD_IMI is not set
 CONFIG_CMD_BCB=y
 CONFIG_CMD_GPIO=y
@@ -32,6 +35,7 @@
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_BMP=y
 CONFIG_CMD_REGULATOR=y
+CONFIG_CMD_AVB=y
 CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
@@ -84,4 +88,5 @@
 CONFIG_BMP_16BPP=y
 CONFIG_BMP_24BPP=y
 CONFIG_BMP_32BPP=y
+CONFIG_LIBAVB=y
 CONFIG_OF_LIBFDT_OVERLAY=y