usb: renesas_usbhs: compile/config are rescued

This patch rescues renesas_usbhs compile from
commit 193ab2a (usb: gadget: allow multiple gadgets to be built)

CONFIG_USB_RENESAS_USBHS compile renesas_usbhs main code which
is shared between Host/Gadget.
CONFIG_USB_RENESAS_USBHS_UDC add mod_gadget to it.

It had lost USB_GADGET_DUALSPEED

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/renesas_usbhs/Kconfig b/drivers/usb/renesas_usbhs/Kconfig
new file mode 100644
index 0000000..286cbf1
--- /dev/null
+++ b/drivers/usb/renesas_usbhs/Kconfig
@@ -0,0 +1,15 @@
+#
+# Renesas USBHS Controller Drivers
+#
+
+config USB_RENESAS_USBHS
+	tristate 'Renesas USBHS controller'
+	depends on SUPERH || ARCH_SHMOBILE
+	default n
+	help
+	  Renesas USBHS is a discrete USB host and peripheral controller chip
+	  that supports both full and high speed USB 2.0 data transfers.
+	  It has nine or more configurable endpoints, and endpoint zero.
+
+	  Say "y" to link the driver statically, or "m" to build a
+	  dynamically linked module called "renesas_usbhs"