usb: renesas_usbhs: Change USBHS_TYPE_R8A779x to USBHS_TYPE_RCAR_GEN2

Since the HSUSB controllers of R-Car Gen2 are the same specification
(they have 16 pipes and usb-dmac), this patch changes USBHS_TYPE_R8A7790
and USBHS_TYPE_R8A7791 to USBHS_TYPE_RCAR_GEN2.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index f06529c..3dd5a78 100644
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -169,8 +169,7 @@
 #define USBHS_USB_DMAC_XFER_SIZE	32	/* hardcode the xfer size */
 };
 
-#define USBHS_TYPE_R8A7790 1
-#define USBHS_TYPE_R8A7791 2
+#define USBHS_TYPE_RCAR_GEN2	1
 
 /*
  * option: