media: av7110: fix prohibited spaces in switch statement

This patch fixes "space prohibited before that ':'" checkpatch error
in the switch statements.

Suggested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Husni Faiz <ahamedhusni73@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>