arm64: dts: salvator-x: enable usb2_phy of channel 1 and 2

This board has a MAX3355 chip. However, we cannot use the extcon/max3355
driver because the ID pin doesn't connect to a gpio pin (in other words,
it connects to the SoC specific pin).
And, the phy-rcar-gen3-usb2 driver cannot handle such a chip for now.
So, this patch enables usb2_phy of channel 1 and 2.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts

@@ -188,6 +188,16 @@ sound_clk_pins: sound_clk {
 				 "audio_clkout_a", "audio_clkout3_a";
 		renesas,function = "audio_clk";
 	};
+
+	usb1_pins: usb1 {
+		renesas,groups = "usb1";
+		renesas,function = "usb1";
+	};
+
+	usb2_pins: usb2 {
+		renesas,groups = "usb2";
+		renesas,function = "usb2";
+	};
 };
 
 &scif1 {
@@ -348,3 +358,17 @@ phy0: ethernet-phy@0 {
 &xhci0 {
 	status = "okay";
 };
+
+&usb2_phy1 {
+	pinctrl-0 = <&usb1_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&usb2_phy2 {
+	pinctrl-0 = <&usb2_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};