usb: host: xhci-plat: add support for the R-Car M2-N xHCI controller

This patch adds support for R-Car M2-N (r8a7793) xHCI controller.
This SoC is compatible with R-Car H2 (r8a7790) and R-Car M2-W (r8a7791).

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index a471f12..0113e79 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -97,6 +97,9 @@
 		.compatible = "renesas,xhci-r8a7791",
 		.data = &xhci_plat_renesas_rcar_gen2,
 	}, {
+		.compatible = "renesas,xhci-r8a7793",
+		.data = &xhci_plat_renesas_rcar_gen2,
+	}, {
 	},
 };
 MODULE_DEVICE_TABLE(of, usb_xhci_of_match);