arm64: zynqmp: Sync node name address with reg (mailbox)

Address in node name should match with the first reg property in DT.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/5d8e80383912b8ff75409764efb75f3b85917087.1683034376.git.michal.simek@amd.com

arch/arm64/boot/dts/xilinx/zynqmp.dtsi

@@ -126,7 +126,7 @@ zynqmp_ipi: zynqmp_ipi {
 		#size-cells = <2>;
 		ranges;
 
-		ipi_mailbox_pmu1: mailbox@ff990400 {
+		ipi_mailbox_pmu1: mailbox@ff9905c0 {
 			reg = <0x0 0xff9905c0 0x0 0x20>,
 			      <0x0 0xff9905e0 0x0 0x20>,
 			      <0x0 0xff990e80 0x0 0x20>,