ARM: dts: imx6q: align GPIO hog names with dtschema

dtschema for pca95xx expects GPIO hogs to end with 'hog' prefix. While
touching the hogs, fix indentation (spaces -> tabs).

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/imx6q-b450v3.dts

···
 };
 
 &pca9539 {
-	P04 {
+	P04-hog {
 		gpio-hog;
 		gpios = <4 0>;
 		output-low;
 		line-name = "PCA9539-P04";
 	};
 
-        P07 {
-                gpio-hog;
-                gpios = <7 0>;
-                output-low;
-                line-name = "PCA9539-P07";
-        };
+	P07-hog {
+		gpio-hog;
+		gpios = <7 0>;
+		output-low;
+		line-name = "PCA9539-P07";
+	};
 };
 
 &pci_root {

arch/arm/boot/dts/imx6q-b650v3.dts

···
 };
 
 &pca9539 {
-        P07 {
-                gpio-hog;
-                gpios = <7 0>;
-                output-low;
-                line-name = "PCA9539-P07";
-        };
+	P07-hog {
+		gpio-hog;
+		gpios = <7 0>;
+		output-low;
+		line-name = "PCA9539-P07";
+	};
 };
 
 &usbphy1 {

arch/arm/boot/dts/imx6q-b850v3.dts

···
 };
 
 &pca9539 {
-	P10 {
+	P10-hog {
 		gpio-hog;
 		gpios = <8 0>;
 		output-low;
 		line-name = "PCA9539-P10";
 	};
 
-	P11 {
+	P11-hog {
 		gpio-hog;
 		gpios = <9 0>;
 		output-low;

arch/arm/boot/dts/imx6q-bx50v3.dtsi

···
 				interrupt-parent = <&gpio2>;
 				interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
 
-				P12 {
+				P12-hog {
 					gpio-hog;
 					gpios = <10 0>;
 					output-low;
 					line-name = "PCA9539-P12";
 				};
 
-				P13 {
+				P13-hog {
 					gpio-hog;
 					gpios = <11 0>;
 					output-low;
 					line-name = "PCA9539-P13";
 				};
 
-				P14 {
+				P14-hog {
 					gpio-hog;
 					gpios = <12 0>;
 					output-low;
 					line-name = "PCA9539-P14";
 				};
 
-				P15 {
+				P15-hog {
 					gpio-hog;
 					gpios = <13 0>;
 					output-low;
 					line-name = "PCA9539-P15";
 				};
 
-				P16 {
+				P16-hog {
 					gpio-hog;
 					gpios = <14 0>;
 					output-low;
 					line-name = "PCA9539-P16";
 				};
 
-				P17 {
+				P17-hog {
 					gpio-hog;
 					gpios = <15 0>;
 					output-low;