ramips: fix dts whitespace

Replace blanks with tabs
Remove whitespace from otherwise empty lines

Signed-off-by: Felix Baumann <felix.bau@gmx.de>

target/linux/ramips/dts/mt7621_asus_rp-ac56.dts

@@ -106,7 +106,7 @@
 };
 
 &gpio {
-       status = "okay";
+	status = "okay";
 };
 
 &spi0 {
@@ -208,12 +208,12 @@
 };
 
 &switch0 {
-        ports {
-                port@0 {
-                        status = "okay";
-                        label = "lan";
-                };
-        };
+	ports {
+		port@0 {
+			status = "okay";
+			label = "lan";
+		};
+	};
 };
 
 &xhci {

target/linux/ramips/dts/mt7621_keenetic_kn-3010.dts

@@ -65,7 +65,7 @@
 			label = "wps";
 			gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
 			linux,code = <KEY_WPS_BUTTON>;
-                };
+		};
 	};
 
 	virtual_flash {

target/linux/ramips/dts/mt7621_linksys_ea6350-v4.dts

@@ -8,7 +8,7 @@
 };
 
 &gmac1 {
-        phy-handle = <&ethphy4>;
+	phy-handle = <&ethphy4>;
 };
 
 &mdio {

target/linux/ramips/dts/mt7621_zyxel_nwa50ax.dts

@@ -49,8 +49,8 @@
 };
 
 &state_default {
-        gpio {
-                groups = "uart3", "rgmii2";
-                function = "gpio";
-        };
+	gpio {
+		groups = "uart3", "rgmii2";
+		function = "gpio";
+	};
 };