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/lwmon5_defconfig b/configs/lwmon5_defconfig
index eaf6c97..f8b0a2e 100644
--- a/configs/lwmon5_defconfig
+++ b/configs/lwmon5_defconfig
@@ -15,4 +15,6 @@
 CONFIG_CMD_PING=y
 CONFIG_CMD_FAT=y
 CONFIG_SYS_NS16550=y
+CONFIG_USB=y
+CONFIG_USB_STORAGE=y
 CONFIG_OF_LIBFDT=y