arm64: dts: renesas: r8a774c0-cat874: Add pincontrol support to scif2

This patch adds pincontrol support to scif2.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts

@@ -32,6 +32,16 @@
 	clock-frequency = <48000000>;
 };
 
+&pfc {
+	scif2_pins: scif2 {
+		groups = "scif2_data_a";
+		function = "scif2";
+	};
+};
+
 &scif2 {
+	pinctrl-0 = <&scif2_pins>;
+	pinctrl-names = "default";
+
 	status = "okay";
 };