qcacmn: Expose scan_backoff_multiplier for NLO/PNO

For Network Listen Offload and Perfered Network Offload, the fast scan
period is multiplied by scan_backoff_multiplier after max cycles have
occurred. Expose scan_backoff_multiplier to consumers of the WMI API,
so this parameter can be configured.

Change-Id: I478fb61cd096d3496205f4ff556e180dabf99b77
CRs-Fixed: 2035201
1 file changed