ARM: dts: imx6ul: Add PXP node

Add PXP node for i.MX6UL/L SoC.

Signed-off-by: Sébastien Szymanski <[e-mail]>
Reviewed-by: Marco Felsch <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/imx6ul.dtsi

···
 				status = "disabled";
 			};
 
+			pxp: pxp@21cc000 {
+				compatible = "fsl,imx6ul-pxp";
+				reg = <0x021cc000 0x4000>;
+				interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clks IMX6UL_CLK_PXP>;
+				clock-names = "axi";
+			};
+
 			qspi: spi@21e0000 {
 				#address-cells = <1>;
 				#size-cells = <0>;

arch/arm/boot/dts/imx6ull.dtsi

···
 	compatible = "fsl,imx6ull-ocotp", "syscon";
 };
 
+&pxp {
+	compatible = "fsl,imx6ull-pxp";
+	interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+};
+
 &usdhc1 {
 	compatible = "fsl,imx6ull-usdhc", "fsl,imx6sx-usdhc";
 };