* pci/host-imx6:
PCI: imx6: Fix spelling mistake: "contol" -> "control"
PCI: imx6: Do not switch speed if Gen2 is disabled
PCI: imx6: Do not wait for speed change on i.MX7
PCI: imx6: Allow probe deferral by reset GPIO
PCI: imx6: Add code to support i.MX7D