[PATCH] uml: fix sleep length bug

um_timer shouldn't add local_offset to the host time since get_time already
did it.  This threw off sleep when a settimeofday or equivalent had happened.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>