ARM: dts: rockchip: Drop interrupts property from pwm-rockchip nodes

The binding doesn't define interrupts and adding such a definition was
refused because it's unclear how they should ever be used and the
relevant registers are outside the PWM range. So drop them fixing
several dtbs_check warnings like:

	arch/arm/boot/dts/rockchip/rv1108-elgin-r1.dtb: pwm@10280030: 'interrupts' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/pwm/pwm-rockchip.yaml#Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20240129113205.2453029-2-u.kleine-koenig@pengutronix.deSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rockchip/rv1108.dtsi

@@ -196,7 +196,6 @@ spi: spi@10270000 {
 	pwm4: pwm@10280000 {
 		compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
 		reg = <0x10280000 0x10>;
-		interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>;
 		clock-names = "pwm", "pclk";
 		pinctrl-names = "default";
@@ -208,7 +207,6 @@ pwm4: pwm@10280000 {
 	pwm5: pwm@10280010 {
 		compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
 		reg = <0x10280010 0x10>;
-		interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>;
 		clock-names = "pwm", "pclk";
 		pinctrl-names = "default";
@@ -220,7 +218,6 @@ pwm5: pwm@10280010 {
 	pwm6: pwm@10280020 {
 		compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
 		reg = <0x10280020 0x10>;
-		interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>;
 		clock-names = "pwm", "pclk";
 		pinctrl-names = "default";
@@ -232,7 +229,6 @@ pwm6: pwm@10280020 {
 	pwm7: pwm@10280030 {
 		compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
 		reg = <0x10280030 0x10>;
-		interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>;
 		clock-names = "pwm", "pclk";
 		pinctrl-names = "default";
@@ -386,7 +382,6 @@ i2c0: i2c@20000000 {
 	pwm0: pwm@20040000 {
 		compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
 		reg = <0x20040000 0x10>;
-		interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru SCLK_PWM0_PMU>, <&cru PCLK_PWM0_PMU>;
 		clock-names = "pwm", "pclk";
 		pinctrl-names = "default";
@@ -398,7 +393,6 @@ pwm0: pwm@20040000 {
 	pwm1: pwm@20040010 {
 		compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
 		reg = <0x20040010 0x10>;
-		interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru SCLK_PWM0_PMU>, <&cru PCLK_PWM0_PMU>;
 		clock-names = "pwm", "pclk";
 		pinctrl-names = "default";
@@ -410,7 +404,6 @@ pwm1: pwm@20040010 {
 	pwm2: pwm@20040020 {
 		compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
 		reg = <0x20040020 0x10>;
-		interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru SCLK_PWM0_PMU>, <&cru PCLK_PWM0_PMU>;
 		clock-names = "pwm", "pclk";
 		pinctrl-names = "default";
@@ -422,7 +415,6 @@ pwm2: pwm@20040020 {
 	pwm3: pwm@20040030 {
 		compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
 		reg = <0x20040030 0x10>;
-		interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru SCLK_PWM0_PMU>, <&cru PCLK_PWM0_PMU>;
 		clock-names = "pwm", "pclk";
 		pinctrl-names = "default";