[PATCH] Fix kerneldoc comments in kernel/timer.c

Some of the kerneldoc comments in this file are ignored since the lead-in
is malformed, using either "/*" or "/***" instead of "/**".

[rdunlap@xenotime.net: kerneldoc fixes]
Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>