Makes the v4l2 outdev name consistent with the v4l2 indev name.
Signed-off-by: Lou Logan <lou@lrcd.com>

Signed-off-by: Marton Balint <cus@passwd.hu>

No need to keep the old symbols around until a major bump since lavd functions
with the avpriv_ prefix were never exposed.
Signed-off-by: James Almer <jamrial@gmail.com>
Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>