riscv: dts: microchip: mpfs: remove pci axi address translation property

An AXI master address translation table property was inadvertently
added to the device tree & this was not caught by dtbs_check at the
time. Remove the property - it should not be in mpfs.dtsi anyway as
it would be more suitable in -fabric.dtsi nor does it actually apply
to the version of the reference design we are using for upstream.

Link: https://www.microsemi.com/document-portal/doc_download/1245812-polarfire-fpga-and-polarfire-soc-fpga-pci-express-user-guide # Section 1.3.3
Fixes: 528a5b1 ("riscv: dts: microchip: add new peripherals to icicle kit device tree")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>

arch/riscv/boot/dts/microchip/mpfs.dtsi

@@ -485,7 +485,6 @@
 			ranges = <0x3000000 0x0 0x8000000 0x20 0x8000000 0x0 0x80000000>;
 			msi-parent = <&pcie>;
 			msi-controller;
-			microchip,axi-m-atr0 = <0x10 0x0>;
 			status = "disabled";
 			pcie_intc: interrupt-controller {
 				#address-cells = <0>;