ARM: uniphier: enable CONFIG_CMD_FS_GENERIC

Enable file system commands such as load, ls.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/configs/uniphier_v8_defconfig b/configs/uniphier_v8_defconfig
index 73bdaa8..d71b8b7 100644
--- a/configs/uniphier_v8_defconfig
+++ b/configs/uniphier_v8_defconfig
@@ -23,6 +23,7 @@
 CONFIG_CMD_TIME=y
 # CONFIG_CMD_MISC is not set
 CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_GPIO_UNIPHIER=y
 CONFIG_MISC=y