ARM: dts: sk-rzg1e: add SCIF2 pins

Add the (previously omitted) SCIF2 pin data to the SK-RZG1E board's
device tree.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7745-sk-rzg1e.dts

 /*
  * Device Tree Source for the SK-RZG1E board
  *
- * Copyright (C) 2016 Cogent Embedded, Inc.
+ * Copyright (C) 2016-2017 Cogent Embedded, Inc.
  *
  * This file is licensed under the terms of the GNU General Public License
  * version 2. This program is licensed "as is" without any warranty of any
@@ -34,7 +34,17 @@ &extal_clk {
 	clock-frequency = <20000000>;
 };
 
+&pfc {
+	scif2_pins: scif2 {
+		groups = "scif2_data";
+		function = "scif2";
+	};
+};
+
 &scif2 {
+	pinctrl-0 = <&scif2_pins>;
+	pinctrl-names = "default";
+
 	status = "okay";
 };