Fix panic from having multiple locks held when updating firmware.  AN_LOCK was asserted during a tsleep resulting in a panic in tsleep.
Fix panic from having multiple locks held when updating firmware.  AN_LOCK
was asserted during a tsleep resulting in a panic in tsleep.

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