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/gurnard_defconfig b/configs/gurnard_defconfig
index d74757c..d2ef958 100644
--- a/configs/gurnard_defconfig
+++ b/configs/gurnard_defconfig
@@ -16,6 +16,8 @@
 # CONFIG_CMD_SOURCE is not set
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_OF_CONTROL=y
+CONFIG_USB=y
+CONFIG_USB_STORAGE=y
 CONFIG_DM_VIDEO=y
 CONFIG_CMD_DHRYSTONE=y
 # CONFIG_EFI_LOADER is not set