[media] tc358743: use - instead of non-ascii wide-dash character

smatch complains about non-ascii characters. It turns out that a wide-dash character
was used instead of the more common '-' character.

Replace those dashes with -.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>