LF-4244-01: Revert "MLK-25629-01: arm64: dts: add power domain for iMX8ULP PXP"

This reverts commit 48acce75.

Signed-off-by: Guoniu.zhou <guoniu.zhou@nxp.com>
Reviewed-by: Robby Cai <Robby.Cai@nxp.com>

arch/arm64/boot/dts/freescale/imx8ulp.dtsi

@@ -1149,7 +1149,6 @@
 					 <&pcc5 IMX8ULP_CLK_PXP>;
 				clock-names = "pxp_ipg", "pxp_axi";
 				interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
-				power-domains = <&scmi_devpd IMX8ULP_PD_PXP>;
 				status = "disabled";
 			};
 		};