MFi386 parts of rev 1.55 (modulo real MD parts):  - implement CLONE_PARENT semantic  - lock proc in the currently disabled part of CLONE_THREAD
MFi386 parts of rev 1.55 (modulo real MD parts):
 - implement CLONE_PARENT semantic
 - lock proc in the currently disabled part of CLONE_THREAD

Submitted by:	rdivacky

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