ramips: fix Phicomm K1S(PSG1208) pinmux

Use gpio function for pins with LEDs.

Signed-off-by: 小桥 <[email protected]>

target/linux/ramips/dts/PSG1208.dts

@@ -82,7 +82,7 @@
 &pinctrl {
 	state_default: pinctrl0 {
 		gpio {
-			ralink,group = "i2c", "uartf", "rgmii1", "rgmii2", "ephy", "wled", "nd_sd";
+			ralink,group = "i2c", "spi refclk", "wled";
 			ralink,function = "gpio";
 		};
 	};