Add sysctl to not reset the device on clear stall failures, to temporarily mitigate problems with VMs.
Add sysctl to not reset the device on clear stall failures, to
temporarily mitigate problems with VMs.

Approved by:    re (kib)
MFC after:      1 week

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase