configs: Migrate CONFIG_USB_STORAGE

In some cases we were missing CONFIG_USB=y so enable that when needed.

Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/M5485FFE_defconfig b/configs/M5485FFE_defconfig
index 18f26f1..c1622d7 100644
--- a/configs/M5485FFE_defconfig
+++ b/configs/M5485FFE_defconfig
@@ -10,3 +10,5 @@
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_CACHE=y
+CONFIG_USB=y
+CONFIG_USB_STORAGE=y