qcacmn: Enhance logic for dwell time 2ghz

With this change, in concurrent mode
(SAP on 5ghz or 6ghz and peer connected + STA Scan ongoing),
active dwell time for 2ghz is not reset to 0.

Change-Id: I27bcd64579727e279095cf5386638dbd49567b3d
CRs-Fixed: 2575762
1 file changed