PCI: imx6: Simplify Kconfig depends on

The imx6 driver can be used on imx6sx without enabling support for
imx6q or imx7d but the "depends on" condition doesn't allow that.

Instead of making the condition even longer just make it depend on
"ARCH_MXC || COMPILE_TEST" instead.
Signed-off-by: NLeonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: NLucas Stach <l.stach@pengutronix.de>

drivers/pci/controller/dwc/Kconfig

@@ -90,7 +90,7 @@ config PCI_EXYNOS
 
 config PCI_IMX6
 	bool "Freescale i.MX6/7/8 PCIe controller"
-	depends on SOC_IMX6Q || SOC_IMX7D || (ARM64 && ARCH_MXC) || COMPILE_TEST
+	depends on ARCH_MXC || COMPILE_TEST
 	depends on PCI_MSI_IRQ_DOMAIN
 	select PCIE_DW_HOST