usb: renesas_usbhs: add R-Car Gen. 2 init and power control

In preparation for DT conversion to reduce reliance on platform device
callbacks.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/renesas_usbhs/Makefile b/drivers/usb/renesas_usbhs/Makefile
index bc8aef4..9e47f47 100644
--- a/drivers/usb/renesas_usbhs/Makefile
+++ b/drivers/usb/renesas_usbhs/Makefile
@@ -4,7 +4,7 @@
 
 obj-$(CONFIG_USB_RENESAS_USBHS)	+= renesas_usbhs.o
 
-renesas_usbhs-y			:= common.o mod.o pipe.o fifo.o
+renesas_usbhs-y			:= common.o mod.o pipe.o fifo.o rcar2.o
 
 ifneq ($(CONFIG_USB_RENESAS_USBHS_HCD),)
 	renesas_usbhs-y		+= mod_host.o