qcacld-3.0: Add ini support to skip full scan after bmiss

Currently, after FINAL_BMISS detection, FW does channel map
based partial scan followed by one full scan if no candidate
found in partial scan to ROAM to another available AP without
disconnection. This results in additional delay by HOST in
issuing disconnection after a heartbeat failure.

Add INI support (bmiss_skip_full_scan) to allow FW to decide
whether firmware does channel map based partial scan or partial
scan followed by full scan in case no candidate is found in
partial scan after final BMISS.

Change-Id: I48f9bb43bb7933e9ff173f618586ea5986530dcd
CRs-Fixed: 2578848
6 files changed