media: vivid: move set_capabilities logic to a separate function

Move such logic from vivid_create_instance(), as otherwise
smatch takes forever.

The vivid_create_instance() is still a too big for my taste.
So, further cleanups are still needed.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
1 file changed