PCI: dwc: dra7xx: Depend on appropriate SoC or compile test

The PCI controller attached to a SoC isn't much use if the core SoC isn't
enabled, unless of course it's compile testing, so add appropriate
dependency.
Signed-off-by: NPeter Robinson <pbrobinson@gmail.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NKishon Vijay Abraham I <kishon@ti.com>

drivers/pci/dwc/Kconfig

@@ -16,6 +16,7 @@ config PCIE_DW_EP
 
 config PCI_DRA7XX
 	bool "TI DRA7xx PCIe controller"
+	depends on SOC_DRA7XX || COMPILE_TEST
 	depends on (PCI && PCI_MSI_IRQ_DOMAIN) || PCI_ENDPOINT
 	depends on OF && HAS_IOMEM && TI_PIPE3
 	help