Comment 0 for bug 1578127

[Steps to reproduce]
1. Boot into OS
2. Do s3 a few times
3. Check if wifi is still working after s3

[Expected results]
wifi still working correctly after s3

[Actual results]
1. Wifi shows "disconnected" in network-manager (both in applet and from command "nmcli d status")
2. Only one random SSID is displayed in network-manager applet, but wifi connection cannot be established at all with this SSID
3. "nmcli d wifi rescan" does not resolve issue
4. "iwlist [interface] scan" returns nothing and does not reolve issue
5. "nmcli d wifi connect [any SSID that you know should exist]" results in SSID not found and does not resolve issue
6. "sudo service network-manager restart", warm boot, cold boot resolves issue

[Details]
OS: Xenial based OEM image
WLAN module: Marvel [11ab:2b38]
network-manager:
- 1.2.0-0ubuntu0.16.04.1 (fail rate 1/20~ 1/15)
- 1.1.93 (fail rate 1/15)