ARM: dts: imx: replace underscore with hyphen in aliases name

It replaces underscore with hyphen in aliases name to fix DTC
alias_paths warning below, which is seen with various i.MX board dts
files when W=1 switch is on.

 Warning (alias_paths): /aliases: aliases property name must include only lowercase and '-'
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Acked-By: Lothar Waßmann <LW@KARO-electronics.de>
Reviewed-by: Gary Bisson <gary.bisson@boundarydevices.com>

arch/arm/boot/dts/imx53-tx53.dtsi

@@ -58,7 +58,7 @@ aliases {
 		can0 = &can2; /* Make the can interface indices consistent with TX28/TX48 modules */
 		can1 = &can1;
 		ipu = &ipu;
-		reg_can_xcvr = &reg_can_xcvr;
+		reg-can-xcvr = &reg_can_xcvr;
 		usbh1 = &usbh1;
 		usbotg = &usbotg;
 	};

arch/arm/boot/dts/imx6qdl-tx6.dtsi

@@ -50,11 +50,11 @@ aliases {
 		can0 = &can2;
 		can1 = &can1;
 		ethernet0 = &fec;
-		lcdif_23bit_pins_a = &pinctrl_disp0_1;
-		lcdif_24bit_pins_a = &pinctrl_disp0_2;
+		lcdif-23bit-pins-a = &pinctrl_disp0_1;
+		lcdif-24bit-pins-a = &pinctrl_disp0_2;
 		pwm0 = &pwm1;
 		pwm1 = &pwm2;
-		reg_can_xcvr = &reg_can_xcvr;
+		reg-can-xcvr = &reg_can_xcvr;
 		stk5led = &user_led;
 		usbotg = &usbotg;
 		sdhc0 = &usdhc1;

arch/arm/boot/dts/imx6sx-nitrogen6sx.dts

@@ -48,8 +48,8 @@ / {
 	compatible = "boundary,imx6sx-nitrogen6sx", "fsl,imx6sx";
 
 	aliases {
-		fb_lcd = &lcdif1;
-		t_lcd = &t_lcd;
+		fb-lcd = &lcdif1;
+		t-lcd = &t_lcd;
 	};
 
 	memory@80000000 {

arch/arm/boot/dts/imx6ul-tx6ul-mainboard.dts

@@ -48,7 +48,7 @@ / {
 	compatible = "karo,imx6ul-tx6ul", "fsl,imx6ul";
 
 	aliases {
-		lcdif_24bit_pins_a = &pinctrl_disp0_3;
+		lcdif-24bit-pins-a = &pinctrl_disp0_3;
 		mmc0 = &usdhc1;
 		/delete-property/ mmc1;
 		serial2 = &uart3;

arch/arm/boot/dts/imx6ul-tx6ul.dtsi

@@ -53,10 +53,10 @@ aliases {
 		i2c2 = &i2c1;
 		i2c3 = &i2c3;
 		i2c4 = &i2c4;
-		lcdif_23bit_pins_a = &pinctrl_disp0_1;
-		lcdif_24bit_pins_a = &pinctrl_disp0_2;
+		lcdif-23bit-pins-a = &pinctrl_disp0_1;
+		lcdif-24bit-pins-a = &pinctrl_disp0_2;
 		pwm0 = &pwm5;
-		reg_can_xcvr = &reg_can_xcvr;
+		reg-can-xcvr = &reg_can_xcvr;
 		serial2 = &uart5;
 		serial4 = &uart3;
 		spi0 = &ecspi2;

arch/arm/boot/dts/imx7d-nitrogen7.dts

@@ -49,8 +49,8 @@ / {
 	compatible = "boundary,imx7d-nitrogen7", "fsl,imx7d";
 
 	aliases {
-		fb_lcd = &lcdif;
-		t_lcd = &t_lcd;
+		fb-lcd = &lcdif;
+		t-lcd = &t_lcd;
 	};
 
 	memory@80000000 {