qcacld-3.0: Set sar safety req resp event before unsolited work stop

Currently when sar safety unsolited timer expires, driver schedules
a work to send sar safety unsolited events to user space. When driver
receives sar set command from user space it tries to stop this work
with delayed work stop sync. This delayed work stop sync API waits for
work to get complete and then it stops the work, because of this,
work runs the complete for loop and sends extra sar safety unsolicited
events even after receiving sar set command.

To addrerss above issue, set the sar safety request response event
before delayed work stop sync to complete the work.

Change-Id: I3485e4b1ea600393ff2d9512a055de92d0a3d612
CRs-Fixed: 3213334