qcacld-3.0: SAP in CAC, block concurrency

At the time of starting / stopping 2nd or 3rd connection,
Host sends WMI_PDEV_SET_HW_CMDID command to FW to change
HW mode to DBS / Single-Mac based on concurrency rule.
FW upon receiving this command turns off TXRX chainmask
which means that radar pulses might get missed for
20ms - 50ms during CAC period. To fix this, Host should
block new connection when existing SAP is performing CAC
on DFS channel.

Change-Id: I51eb117afa763a6ef54211808875419026c9075b
CRs-Fixed: 2533717
6 files changed