[media] cx23885: remove FSF address as per checkpatch

These addresses are usually out-of-date and the top-level license will
always have the right address. So drop it from these sources.

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