Some platforms are broken in PME_TURN_OFF broadcast and ACK handshake.
Add the quirks to support these platforms when generic DWC
suspend/resume callbacks are used.

[PATCH v1 1/4] PCI: dwc: Add quirk to fix hang issue in L2 poll of
[PATCH v1 2/4] PCI: dwc: Add quirk to fix hang issue when send out
[PATCH v1 3/4] PCI: imx6: Fix i.MX6QP PCIe hang issue in L2 poll of
[PATCH v1 4/4] PCI: imx6: Add quirks to fix i.MX7D PCIe hang in

drivers/pci/controller/dwc/pci-imx6.c             |  4 ++++
drivers/pci/controller/dwc/pcie-designware-host.c | 38 +++++++++++++++++++++++---------------
drivers/pci/controller/dwc/pcie-designware.h      |  5 +++++
3 files changed, 32 insertions(+), 15 deletions(-)