commit f5cc6a0c7ede374b33de1cf5156bf149e2e76c13
author Glen Kuhne <kuh@google.com> Tue Mar 01 08:47:13 2016 -0800
committer Glen Kuhne <kuh@google.com> Mon Mar 07 11:03:13 2016 -0800
tree 81eabeb46e84103e6984d134b2b3913a5132e96e
parent 6f5af9b7f69b15369238bd2642c46638ba1f0255

Add Supported Rates and 802.11 Mode detection

Added an Information Element parser for Supported and Extended Supported
Rates.
Uses this information and other IEs to determine the 802.11 Mode
(a/b/g/n/ac) being used by APs, stores it in their scan results.
Modified WifiMetrics to receive and store this metric from a ScanDetail
Added calls to WifiMetrics from WifiStateMachine to give it a ScanDetail
Minor fix to WifiStateMachine's tracking of TargetNetworkId, which it
was clearing incorrectly on NETWORK_DISCONNECTION_EVENT

BUG=25691077
BUG=27446779
Change-Id: I63af5911916bfec87628aeb4e1ed4f9138acfafa