dt-bindings: pci: layerscape-pci: add compatible strings "fsl,ls1043a-pcie"

The PCIe compatible string for LS1043A was lost, so add it.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Documentation/devicetree/bindings/pci/layerscape-pci.txt

@@ -18,6 +18,7 @@ Required properties:
         "fsl,ls2088a-pcie"
         "fsl,ls1088a-pcie"
         "fsl,ls1046a-pcie"
+        "fsl,ls1043a-pcie"
         "fsl,ls1012a-pcie"
 - reg: base addresses and lengths of the PCIe controller register blocks.
 - interrupts: A list of interrupt outputs of the controller. Must contain an