ARM: dts: am335x-sl50: switch to new cpsw switch drv

The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.

So, switch Toby Churchill SL50 Series to use new cpsw switch driver.
Those boards have or 2 Ext. port wired and configured in dual_mac mode by
default, or only 1 Ext. port.

Signed-off-by: Grygorii Strashko <[e-mail]>
Signed-off-by: Tony Lindgren <[e-mail]>

arch/arm/boot/dts/am335x-sl50.dts

···
 	};
 };
 
-&cpsw_emac0 {
+&cpsw_port1 {
 	phy-mode = "mii";
 	phy-handle = <&ethphy0>;
+	ti,dual-emac-pvid = <1>;
 };
 
-&mac {
+&cpsw_port2 {
+	status = "disabled";
+};
+
+&mac_sw {
 	status = "okay";
 	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <&cpsw_default>;
 	pinctrl-1 = <&cpsw_sleep>;
 };
 
-&davinci_mdio {
-	status = "okay";
+&davinci_mdio_sw {
 	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <&davinci_mdio_default>;
 	pinctrl-1 = <&davinci_mdio_sleep>;