MAINTAINERS: add personal addresses for Sascha and Uwe

MAINTAINERS: add personal addresses for Sascha and Uwe

The idea behind using [email protected] (i.e. the mail alias for the
kernel people at Pengutronix) as email address was to have a backup when
a given developer is on vacation or run over by a bus. Make this more
explicit by adding the alias as reviewer and use the personal address
for Sascha and me.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Uwe Kleine-König <[email protected]>
Acked-by: Sascha Hauer <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>