[media] av7110: fix confusing indenting

The else statement here is not aligned with the correct if statement.
I think the code works as intended and it's just the indenting which is
wrong.  Also kernel style says we should use curly braces here so I have
added those.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>