arm: mvebu: clearfog: enable bubt command

With support added for Armada 38x, include the bubt command in
ClearFog defconfig.
Signed-off-by: NJoel Johnson <mrjoel@lixil.net>
Reviewed-by: NStefan Roese <sr@denx.de>

configs/clearfog_defconfig

@@ -31,6 +31,7 @@ CONFIG_SPL_CMD_TLV_EEPROM=y
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_MVEBU_BUBT=y
 CONFIG_CMD_PCI=y
 CONFIG_CMD_SPI=y
 CONFIG_CMD_USB=y