fix spurious disconnect while associating, dont set AP configuration with NULL SSID

Bug:14568953
Bug:17144830

Note: this CL address cases where framework sends spurious disconnect to driver while associating, this issue was only one of the root cause of 17144830, the remaining issues in this bug are "missing scan results" and "wifi chipset disconnects from AP due to missing beacons or receiving deauth from AP"

Change-Id: If888f11bb3c66b55ca8ff991651f9e4457aaea31
4 files changed
tree: 92a46356e3f4580899661381c7be9859065c2edd
  1. service/