usb: host: xhci-plat: add firmware_name for R-Car Gen3

To clean up the xhci-rcar.c code later, this patch adds firmware_name
"V3" for R-Car Gen3.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-plat.c

@@ -105,6 +105,7 @@ static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen2 = {
 };
 
 static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = {
+	.firmware_name = XHCI_RCAR_FIRMWARE_NAME_V3,
 	.init_quirk = xhci_rcar_init_quirk,
 	.plat_start = xhci_rcar_start,
 	.resume_quirk = xhci_rcar_resume_quirk,