usb: gadget: mv: Add USB 3.0 device driver for Marvell PXA2128 chip.

It supports Marvell USB 3.0 device controller for PXA2128 chip.

Signed-off-by: Yu Xu <yuxu@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index bddc8fd..5e242c3 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -321,6 +321,15 @@
 	  USB2.0 OTG controller, which can be configured as high speed or
 	  full speed USB peripheral.
 
+config USB_MV_U3D
+	tristate "MARVELL PXA2128 USB 3.0 controller"
+	depends on CPU_MMP3
+	select USB_GADGET_DUALSPEED
+	select USB_GADGET_SUPERSPEED
+	help
+	  MARVELL PXA2128 Processor series include a super speed USB3.0 device
+	  controller, which support super speed USB peripheral.
+
 #
 # Controllers available in both integrated and discrete versions
 #