ARM: dts: imx6qdl: disable PWMs by default

Since PWMs are only useful if they are actually connected to an output pin,
let users enable them explicitly in their device trees where they should
also set up the pin configuration.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx6qdl.dtsi

@@ -359,6 +359,7 @@ pwm1: pwm@02080000 {
 				clocks = <&clks IMX6QDL_CLK_IPG>,
 					 <&clks IMX6QDL_CLK_PWM1>;
 				clock-names = "ipg", "per";
+				status = "disabled";
 			};
 
 			pwm2: pwm@02084000 {
@@ -369,6 +370,7 @@ pwm2: pwm@02084000 {
 				clocks = <&clks IMX6QDL_CLK_IPG>,
 					 <&clks IMX6QDL_CLK_PWM2>;
 				clock-names = "ipg", "per";
+				status = "disabled";
 			};
 
 			pwm3: pwm@02088000 {
@@ -379,6 +381,7 @@ pwm3: pwm@02088000 {
 				clocks = <&clks IMX6QDL_CLK_IPG>,
 					 <&clks IMX6QDL_CLK_PWM3>;
 				clock-names = "ipg", "per";
+				status = "disabled";
 			};
 
 			pwm4: pwm@0208c000 {
@@ -389,6 +392,7 @@ pwm4: pwm@0208c000 {
 				clocks = <&clks IMX6QDL_CLK_IPG>,
 					 <&clks IMX6QDL_CLK_PWM4>;
 				clock-names = "ipg", "per";
+				status = "disabled";
 			};
 
 			can1: flexcan@02090000 {