dynamically linked module called "r8a66597_udc" and force all
gadget drivers to also be dynamically linked.
-config USB_RENESAS_USBHS
+config USB_RENESAS_USBHS_UDC
tristate 'Renesas USBHS controller'
depends on SUPERH || ARCH_SHMOBILE
+ depends on USB_RENESAS_USBHS
+ select USB_GADGET_DUALSPEED
help
Renesas USBHS is a discrete USB host and peripheral controller chip
that supports both full and high speed USB 2.0 data transfers.