[PATCH] Update email addresses for Zwane

Some folks have been emailing me and having trouble due to these stale
addresses;

Signed-off-by: Zwane Mwaikambo <zwane@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>