configs: s400: enable USB

Enable USB Host & Gadget on the Amlogic S400 board.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/configs/s400_defconfig b/configs/s400_defconfig
index 3c95094..16c1624 100644
--- a/configs/s400_defconfig
+++ b/configs/s400_defconfig
@@ -18,6 +18,8 @@
 CONFIG_CMD_GPIO=y
 # CONFIG_CMD_LOADS is not set
 CONFIG_CMD_MMC=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_USB_MASS_STORAGE=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_REGULATOR=y
 CONFIG_OF_CONTROL=y
@@ -28,6 +30,7 @@
 CONFIG_PHY_REALTEK=y
 CONFIG_DM_ETH=y
 CONFIG_ETH_DESIGNWARE=y
+CONFIG_MESON_GXL_USB_PHY=y
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_MESON_AXG=y
 CONFIG_DM_REGULATOR=y
@@ -36,4 +39,16 @@
 CONFIG_DEBUG_UART_ANNOUNCE=y
 CONFIG_DEBUG_UART_SKIP_INIT=y
 CONFIG_MESON_SERIAL=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_DWC3=y
+CONFIG_USB_DWC3=y
+# CONFIG_USB_DWC3_GADGET is not set
+CONFIG_USB_DWC3_MESON_GXL=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_VENDOR_NUM=0x1b8e
+CONFIG_USB_GADGET_PRODUCT_NUM=0xfada
+CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_OF_LIBFDT_OVERLAY=y