ARM: dts: imx53-tqma: Use #pwm-cells = <3> for imx27-pwm devices

The binding dictates using 3 pwm-cells. Adhere to that.

This fixes the following dtbs_check warnings:

	arch/arm/boot/dts/nxp/imx/imx53-kp-ddc.dtb: pwm@53fb4000: #pwm-cells:0:0: 3 was expected
		from schema : http://devicetree.org/schemas/pwm/imx-pwm.yaml#
	arch/arm/boot/dts/nxp/imx/imx53-kp-ddc.dtb: pwm@53fb8000: #pwm-cells:0:0: 3 was expected
		from schema : http://devicetree.org/schemas/pwm/imx-pwm.yaml#
	arch/arm/boot/dts/nxp/imx/imx53-kp-hsc.dtb: pwm@53fb4000: #pwm-cells:0:0: 3 was expected
		from schema : http://devicetree.org/schemas/pwm/imx-pwm.yaml#
	arch/arm/boot/dts/nxp/imx/imx53-kp-hsc.dtb: pwm@53fb8000: #pwm-cells:0:0: 3 was expected
		from schema : http://devicetree.org/schemas/pwm/imx-pwm.yaml#
	arch/arm/boot/dts/nxp/imx/imx53-mba53.dtb: pwm@53fb4000: #pwm-cells:0:0: 3 was expected
		from schema : http://devicetree.org/schemas/pwm/imx-pwm.yaml#
	arch/arm/boot/dts/nxp/imx/imx53-mba53.dtb: pwm@53fb8000: #pwm-cells:0:0: 3 was expected
		from schema : http://devicetree.org/schemas/pwm/imx-pwm.yaml#Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/nxp/imx/imx53-kp-ddc.dts

@@ -13,7 +13,7 @@ / {
 
 	backlight_lcd: backlight {
 		compatible = "pwm-backlight";
-		pwms = <&pwm2 0 50000>;
+		pwms = <&pwm2 0 50000 0>;
 		power-supply = <&reg_backlight>;
 		brightness-levels = <0 24 28 32 36
 				     40 44 48 52 56

arch/arm/boot/dts/nxp/imx/imx53-kp.dtsi

@@ -13,7 +13,7 @@ buzzer {
 		compatible = "pwm-beeper";
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_buzzer>;
-		pwms = <&pwm1 0 500000>;
+		pwms = <&pwm1 0 500000 0>;
 	};
 
 	gpio-buttons {

arch/arm/boot/dts/nxp/imx/imx53-mba53.dts

@@ -17,7 +17,7 @@ chosen {
 
 	backlight {
 		compatible = "pwm-backlight";
-		pwms = <&pwm2 0 50000>;
+		pwms = <&pwm2 0 50000 0>;
 		brightness-levels = <0 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 100>;
 		default-brightness-level = <10>;
 		enable-gpios = <&gpio7 7 0>;

arch/arm/boot/dts/nxp/imx/imx53-tqma53.dtsi

@@ -202,14 +202,6 @@ MX53_PAD_PATA_CS_1__UART3_RXD_MUX	0x1e4
 	};
 };
 
-&pwm1 {
-	#pwm-cells = <2>;
-};
-
-&pwm2 {
-	#pwm-cells = <2>;
-};
-
 &uart1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart1>;