ramips: fix indentation and other mistakes in .dts{, i} files

The following patch fixes:
 * wrong indentations
 * doubled gpio-keys-polled nodes (DIR-300-B7, DIR-320-B1, DIR-610-A1)
 * duplicate spacings
 * empty lines at end of files and after last child nodes
 * trailing and leading whitespace
 * unnecessary and commented-out code
 * missing empty lines between nodes and between properties and nodes
 * unnecessary empty lines between nodes properties [1]

in .dts{,i} files, for ramips target.

[1] Some of empty lines in SOCs dtsi files were left untouched, because they seem to be there for a reason (readability?).

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>

SVN-Revision: 46613

target/linux/ramips/dts/MT7620a.dts

@@ -55,10 +55,8 @@
 
 	ethernet@10100000 {
 		status = "okay";
-
 		pinctrl-names = "default";
 		pinctrl-0 = <&rgmii1_pins &rgmii2_pins &mdio_pins>;
-
 		ralink,port-map = "llllw";
 
 		port@4 {
@@ -105,11 +103,13 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 		poll-interval = <20>;
+
 		s2 {
 			label = "S2";
 			gpios = <&gpio0 1 1>;
 			linux,code = <0x100>;
 		};
+
 		s3 {
 			label = "S3";
 			gpios = <&gpio0 2 1>;