advfs: Add fs/msfs
advfs: Use proper file-names with paths
advfs: KERNEL -> _KERNEL
advfs: <sys/lock_probe.h> is missing
advfs: <sys/cli.h> is missing
advfs: kern/sched_prim.h is missing
advfs: kern/sched_prim.h is missing
advfs: kern/lock.h -> sys/lock.h
advfs: <kern/thread.h> is missing
advfs: <sys/lock_probe.h> is missing