When make_dev_credf(MAKEDEV_WAITOK) is called, use devctl_notify_f(M_WAITOK) for devfs notifications.
When make_dev_credf(MAKEDEV_WAITOK) is called, use
devctl_notify_f(M_WAITOK) for devfs notifications.

Suggested by:	jh
Reviewed by:	imp, jh
MFC after:	3 weeks

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