imx: pcl063: add nand boot support

Booting from NAND needs nandbcb and nand boot device selection

Signed-off-by: Parthiban Nallathambi <pn@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
diff --git a/configs/phycore_pcl063_defconfig b/configs/phycore_pcl063_defconfig
index be16f48..4fdcf67 100644
--- a/configs/phycore_pcl063_defconfig
+++ b/configs/phycore_pcl063_defconfig
@@ -27,6 +27,7 @@
 CONFIG_CMD_USB=y
 CONFIG_CMD_USB_SDP=y
 CONFIG_CMD_CACHE=y
+CONFIG_CMD_NANDBCB=y
 CONFIG_MTDIDS_DEFAULT="nand0=gpmi-nand"
 CONFIG_MTDPARTS_DEFAULT="gpmi-nand:4m(uboot),1m(env),-(root)"
 CONFIG_CMD_UBI=y