qcacmn: Add Host abstraction for WMI pdev param SR_TRIGGER_MARGIN
Pdev parameter WMI_PDEV_PARAM_SR_TRIGGER_MARGIN is added to configure
the safety margin which will be used in calculating the acceptable
interference level for PSR based Spatial Reuse operation.
Add the host abstraction for the same parameter.
CRs-Fixed: 2729664
Change-Id: Iae542d4f7de23520ee00719e721d81e32737a191