RC_TYPE is confusing and it's just the protocol. So rename it.
Suggested-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NSean Young <sean@mess.org>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>