e921bad259
There is known pcie linkdown issue for qca6490 if gen3 speed is used. Previous solution is to downgrade to gen2 before enumeration, but it doesn't work if platform support multiple wlan chips where device id can't be determined until enumeration success. The fix is: 1, Enumerate all devices with gen1 speed 2, When enumeration done, restore to gen2 if device is qca6490 Change-Id: I55d554c4dc7d01ed82fffe79f666b340b1004765 CRs-Fixed: 3612384