configs: u200: enable support for USB Host & Gadget

Now the Amlogic G12A DT and drivers are present, enable full USB
on the U200 Reference Design board.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/configs/u200_defconfig b/configs/u200_defconfig
index 13b6f41..2c0999c 100644
--- a/configs/u200_defconfig
+++ b/configs/u200_defconfig
@@ -37,3 +37,20 @@
 CONFIG_DEBUG_UART_SKIP_INIT=y
 CONFIG_MESON_SERIAL=y
 CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_USB=y
+CONFIG_USB_HOST=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_PHY=y
+CONFIG_MESON_G12A_USB_PHY=y
+CONFIG_DM_USB=y
+CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_DWC3=y
+CONFIG_USB_DWC3=y
+CONFIG_USB_DWC3_MESON_G12A=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_USB_MASS_STORAGE=y
+CONFIG_USB_GADGET_VENDOR_NUM=0x1b8e
+CONFIG_USB_GADGET_PRODUCT_NUM=0xfada