ARM: uniphier: enable CONFIG_CMD_CONFIG

This command is useful to see which config options are enabled on
the running U-Boot image.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/configs/uniphier_v8_defconfig b/configs/uniphier_v8_defconfig
index cb972b2..85f8da5 100644
--- a/configs/uniphier_v8_defconfig
+++ b/configs/uniphier_v8_defconfig
@@ -7,6 +7,7 @@
 CONFIG_DEFAULT_DEVICE_TREE="uniphier-ld20-ref"
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
 CONFIG_HUSH_PARSER=y
+CONFIG_CMD_CONFIG=y
 # CONFIG_CMD_XIMG is not set
 # CONFIG_CMD_ENV_EXISTS is not set
 CONFIG_CMD_GPT=y