ramips: fix up switch settings for Sitecom WL-351 v1 002

Pinmux for rgmii needs to be set to rgmii, not gpio.
Hide the ESW switch on boot (using new rgmii esw devicetree attribute).
Also add a Sitecom-specific profile, since the image needs to include
the rtl8366 kernel driver.

Signed-off-by: Tobias Diedrich <ranma+openwrt@tdiedrich.de>

target/linux/ramips/dts/WL-351.dts

@@ -86,9 +86,13 @@
 &pinctrl {
 	state_default: pinctrl0 {
 		gpio {
-			ralink,group = "spi", "i2c", "jtag", "rgmii", "mdio", "uartf";
+			ralink,group = "spi", "i2c", "jtag", "mdio", "uartf";
 			ralink,function = "gpio";
 		};
+		rgmii {
+			ralink,group = "rgmii";
+			ralink,function = "rgmii";
+		};
 	};
 };
 
@@ -97,6 +101,7 @@
 };
 
 &esw {
+	ralink,rgmii = <1>;
 	mediatek,portmap = <0x3f>;
 	ralink,fct2 = <0x0002500c>;
 	/*