usb: renesas_usbhs: add a compatible string for r8a7796

This patch adds support for r8a7796 (R-Car M3-W).
Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NFelipe Balbi <felipe.balbi@linux.intel.com>

Documentation/devicetree/bindings/usb/renesas_usbhs.txt

@@ -9,6 +9,7 @@ Required properties:
 	- "renesas,usbhs-r8a7793" for r8a7793 (R-Car M2-N) compatible device
 	- "renesas,usbhs-r8a7794" for r8a7794 (R-Car E2) compatible device
 	- "renesas,usbhs-r8a7795" for r8a7795 (R-Car H3) compatible device
+	- "renesas,usbhs-r8a7796" for r8a7796 (R-Car M3-W) compatible device
 	- "renesas,rcar-gen2-usbhs" for R-Car Gen2 compatible device
 	- "renesas,rcar-gen3-usbhs" for R-Car Gen3 compatible device
 

drivers/usb/renesas_usbhs/common.c

@@ -481,6 +481,10 @@ static const struct of_device_id usbhs_of_match[] = {
 		.compatible = "renesas,usbhs-r8a7795",
 		.data = (void *)USBHS_TYPE_RCAR_GEN3,
 	},
+	{
+		.compatible = "renesas,usbhs-r8a7796",
+		.data = (void *)USBHS_TYPE_RCAR_GEN3,
+	},
 	{
 		.compatible = "renesas,rcar-gen2-usbhs",
 		.data = (void *)USBHS_TYPE_RCAR_GEN2,