qcacmn: Add optional reason to QDF_DEBUG_PANIC

It is generally useful to log the reason for a panic at the time of
panic. The Linux panic API accepts a reason string, so to aid in moving
from panic() to QDF_DEBUG_PANIC(), add an optional reason parameter.

Change-Id: If4ed0e664f6b15deb4c6edf76bdc25f55ba82fac
CRs-Fixed: 2271764
2 files changed