ARM: dts: rskrza1: Add Ethernet pin group

Add pin configuration for Ethernet.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r7s72100-rskrza1.dts

@@ -55,6 +55,29 @@ scif2_pins: serial2 {
 		pinmux = <RZA1_PINMUX(3, 0, 6)>,	/* TxD2 */
 			 <RZA1_PINMUX(3, 2, 4)>;	/* RxD2 */
 	};
+
+	/* Ethernet */
+	ether_pins: ether {
+		/* Ethernet on Ports 1,2,3,5 */
+		pinmux = <RZA1_PINMUX(1, 14, 4)>,	/* ET_COL   */
+			 <RZA1_PINMUX(5, 9, 2)>,	/* ET_MDC   */
+			 <RZA1_PINMUX(3, 3, 2)>,	/* ET_MDIO  */
+			 <RZA1_PINMUX(3, 4, 2)>,	/* ET_RXCLK */
+			 <RZA1_PINMUX(3, 5, 2)>,	/* ET_RXER  */
+			 <RZA1_PINMUX(3, 6, 2)>,	/* ET_RXDV  */
+			 <RZA1_PINMUX(2, 0, 2)>,	/* ET_TXCLK */
+			 <RZA1_PINMUX(2, 1, 2)>,	/* ET_TXER  */
+			 <RZA1_PINMUX(2, 2, 2)>,	/* ET_TXEN  */
+			 <RZA1_PINMUX(2, 3, 2)>,	/* ET_CRS   */
+			 <RZA1_PINMUX(2, 4, 2)>,	/* ET_TXD0  */
+			 <RZA1_PINMUX(2, 5, 2)>,	/* ET_TXD1  */
+			 <RZA1_PINMUX(2, 6, 2)>,	/* ET_TXD2  */
+			 <RZA1_PINMUX(2, 7, 2)>,	/* ET_TXD3  */
+			 <RZA1_PINMUX(2, 8, 2)>,	/* ET_RXD0  */
+			 <RZA1_PINMUX(2, 9, 2)>,	/* ET_RXD1  */
+			 <RZA1_PINMUX(2, 10, 2)>,	/* ET_RXD2  */
+			 <RZA1_PINMUX(2, 11, 2)>;	/* ET_RXD3  */
+	};
 };
 
 &mtu2 {
@@ -62,6 +85,8 @@ &mtu2 {
 };
 
 &ether {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ether_pins>;
 	status = "okay";
 	renesas,no-ether-link;
 	phy-handle = <&phy0>;