arm64: versal: Enable BDI for mini mtest configuration

bdi is useful to see how memory is mapped.
Also enable 3 memory banks to be mapped.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/xilinx_versal_mini_defconfig b/configs/xilinx_versal_mini_defconfig
index 742aa12..afcbed3 100644
--- a/configs/xilinx_versal_mini_defconfig
+++ b/configs/xilinx_versal_mini_defconfig
@@ -4,7 +4,7 @@
 CONFIG_ARCH_VERSAL=y
 CONFIG_SYS_TEXT_BASE=0xFFFC0000
 CONFIG_ENV_SIZE=0x80
-CONFIG_NR_DRAM_BANKS=1
+CONFIG_NR_DRAM_BANKS=3
 CONFIG_SYS_MALLOC_LEN=0x2000
 CONFIG_SYS_MEM_RSVD_FOR_MMU=y
 CONFIG_COUNTER_FREQUENCY=2720000
@@ -20,7 +20,6 @@
 # CONFIG_SYS_LONGHELP is not set
 CONFIG_SYS_PROMPT="Versal> "
 # CONFIG_AUTOBOOT is not set
-# CONFIG_CMD_BDI is not set
 # CONFIG_CMD_CONSOLE is not set
 # CONFIG_CMD_BOOTD is not set
 # CONFIG_CMD_BOOTM is not set