Currently, host decrements beacon switch count and sends
channel switch frame every time until count becomes 0 this
may introduce sync issue between fw and host.
To avoid sync issue csa switch count is offloaded to fw. fw
will send CSA_SWITCH_COUNT_STATUS_EVENTID once beacon count
becomes 0 and host will send vdev restart once it recives
CSA_SWITCH_COUNT_STATUS_EVENTID.
Change-Id: I60238e8e83b56ca4c6490f9516d673d14ef9c323
CRs-Fixed: 2831356