qcacmn: Block all new scan during suspend mode

After driver suspend some thread can still queue scan req
which will cause scan during suspend and WOW_ENABLE received
while SCAN in progress.

TO avoid this block all new scan during suspend.

Change-Id: I02ddc9b5e6ba5f1782d00e34f044ace34c54d0b0
CRs-Fixed: 2343385
2 files changed