ARM: mxs: Rename 'hog-gpios'

hog_pins is used to setup the pin functions, and it is not neccesarily used only
for GPIO pins, so use only 'hog' to describe a more generic term.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx23-evk.dts

@@ -42,7 +42,7 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&hog_pins_a>;
 
-				hog_pins_a: hog-gpios@0 {
+				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
 						0x1123 /* MX23_PAD_LCD_RESET__GPIO_1_18 */

arch/arm/boot/dts/imx23-stmp378x_devb.dts

@@ -36,7 +36,7 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&hog_pins_a>;
 
-				hog_pins_a: hog-gpios@0 {
+				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
 						0x11d3 /* MX23_PAD_PWM3__GPIO_1_29 */

arch/arm/boot/dts/imx28-apx4devkit.dts

@@ -37,7 +37,7 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&hog_pins_a>;
 
-				hog_pins_a: hog-gpios@0 {
+				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
 						0x0113 /* MX28_PAD_GPMI_CE1N__GPIO_0_17 */

arch/arm/boot/dts/imx28-evk.dts

@@ -50,7 +50,7 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&hog_pins_a>;
 
-				hog_pins_a: hog-gpios@0 {
+				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
 						0x20d3 /* MX28_PAD_SSP1_CMD__GPIO_2_13 */

arch/arm/boot/dts/imx28-m28evk.dts

@@ -69,7 +69,7 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&hog_pins_a>;
 
-				hog_pins_a: hog-gpios@0 {
+				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
 						0x30a3 /* MX28_PAD_AUART2_CTS__GPIO_3_10 */

arch/arm/boot/dts/imx28-tx28.dts

@@ -25,7 +25,7 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&hog_pins_a>;
 
-				hog_pins_a: hog-gpios@0 {
+				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
 						0x40a3 /* MX28_PAD_ENET0_RXD3__GPIO_4_10 */