INT 15 - MultiDOS Plus - RELEASE RESOURCE SEMAPHORE BY NAME
        AH = 1Ch
        DS:SI -> 8-byte name
Return: AH = status
            00h successful
            01h not semaphore owner
            02h invalid semaphore number
            04h out of string space
Notes:  (see AH=02h"MultiDOS")
        equivalent to AH=1Ah followed by AH=02h
SeeAlso: AH=1Ah"MultiDOS",AH=1Bh"MultiDOS",AH=1Dh"MultiDOS"