PCI: dwc: Adjust Kconfig to allow IMX6 PCIe host on IMX7

The IMX6 PCI-e host driver also supports the IMX7d. However, the
Kconfig dependencies of the driver prevented it from being enabled
unless the kernel was built with both IMX6 and IMX7 support.

It works fine to build with only IMX7 support enabled therefore
adjust the Kconfig entry to allow this configuration.
Signed-off-by: Trent Piepho <tpiepho@impinj.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>

drivers/pci/controller/dwc/Kconfig

@@ -89,8 +89,8 @@ config PCI_EXYNOS
 	select PCIE_DW_HOST
 
 config PCI_IMX6
-	bool "Freescale i.MX6 PCIe controller"
-	depends on SOC_IMX6Q || (ARM && COMPILE_TEST)
+	bool "Freescale i.MX6/7 PCIe controller"
+	depends on SOC_IMX6Q || SOC_IMX7D || (ARM && COMPILE_TEST)
 	depends on PCI_MSI_IRQ_DOMAIN
 	select PCIE_DW_HOST