Data stall info received as part of wmi debug msg flush
event is parsed for all reasons. Since fw populates this
info only when the reason is data_stall_trigger, in all
other cases this info would be garbage values and is sent
to userspace.
Fix is to parse data stall info only for the appropriate
trigger reason.
Change-Id: I70004e5825e67df375e9bc14c2db2a398d860c97
CRs-Fixed: 2724248
c719f2d546