qcacld-3.0: LFR2 DBS roam support

During LFR2 roaming, after the preauth with new AP
and disassociation with current AP are successful,
proper HW mode should be set based on the
existing concurrency scenario.

Change-Id: I312ed10bc844712b3dba36680457198a19f1e85c
CRs-Fixed: 2367224
7 files changed