Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Extracted for OSS/Free changes from Ingo's original patches.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>