ARM: configs: at91: sama7: Enable MTD_UBI_BLOCK

Address read only block filesystems like SquashFS, and use MTD_UBI_BLOCK
to benefit of UBI's bit-flip handling and wear-levelling.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>

Author: ambarus

arch/arm/configs/sama7_defconfig

@@ -96,6 +96,7 @@ CONFIG_MTD_SPI_NOR=y
 # CONFIG_MTD_SPI_NOR_USE_4K_SECTORS is not set
 CONFIG_MTD_UBI=y
 CONFIG_MTD_UBI_FASTMAP=y
+CONFIG_MTD_UBI_BLOCK=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=1