kconfig: add dependency PCIE_LAYERSCAPE_GEN4 for FSL_PCIE_COMPAT

The LX2160A PCIe is using driver PCIE_LAYERSCAPE_GEN4 instead
of PCIE_LAYERSCAPE.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
index f48481f..d37e367 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -242,7 +242,7 @@
 
 config FSL_PCIE_COMPAT
 	string "PCIe compatible of Kernel DT"
-	depends on PCIE_LAYERSCAPE
+	depends on PCIE_LAYERSCAPE || PCIE_LAYERSCAPE_GEN4
 	default "fsl,ls1012a-pcie" if ARCH_LS1012A
 	default "fsl,ls1043a-pcie" if ARCH_LS1043A
 	default "fsl,ls1046a-pcie" if ARCH_LS1046A