ARM: dts: DRA72: switch to cpsw slave0 for ethernet

On DRA72 EVM, cpsw slave1 is muxed with VIN2A, hence switch to cpsw
slave0 for ethernet. Add gpio hog entry to pcf_gpio_21 in order to
select cpsw slave0.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/dra72-evm.dts

@@ -343,6 +343,12 @@ pcf_gpio_21: gpio@21 {
 		interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
+
+		cpsw_sel_s0 {
+			gpio-hog;
+			gpios = <4 GPIO_ACTIVE_HIGH>;
+			output-low;
+		};
 	};
 };
 
@@ -571,9 +577,10 @@ &mac {
 	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <&cpsw_default>;
 	pinctrl-1 = <&cpsw_sleep>;
+	slaves = <1>;
 };
 
-&cpsw_emac1 {
+&cpsw_emac0 {
 	phy_id = <&davinci_mdio>, <3>;
 	phy-mode = "rgmii";
 };
@@ -582,7 +589,6 @@ &davinci_mdio {
 	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <&davinci_mdio_default>;
 	pinctrl-1 = <&davinci_mdio_sleep>;
-	active_slave = <1>;
 };
 
 &dcan1 {