Update the bssid, L2Key and GroupHint information upon L2 roaming completes.

Bug: 131797393
Test: atest FrameworksWifiTests

Merged-In: Ic5ad351a3d56cedc4ec9bfce7279f8687ad0b51b
Change-Id: I17f055c02f80e8a30d5b7218a1710def6e043554
2 files changed