Revert "st/vdpau: use linear layout for output surfaces"

Revert "st/vdpau: use linear layout for output surfaces"

This reverts commit d180de35320eafa3df3d76f0e82b332656530126.

This is a radeon specific hack that causes problems on nouveau
when combined with the SHARED flag later. If radeonsi needs a fix
for this, please fix it in the driver.

[chk]
Using linear surfaces for this makes sense because tilling isn't
beneficial and the surfaces can potentially be shared with other GPUs
using the VDPAU OpenGL interop.

[airlied]
I think we need a flag that isn't SHARED/LINEAR that is more
SHARED_OTHER_GPU.

[mareko]
Does radeonsi need PIPE_BIND_VIDEO_DECODE_OUTPUT that it would translate
into linear ?

[mareko]
My only concern is decoding performance. If the decoder works in 64x1
blocks, tiling will hurt. That's the theory. I don't know how the
decoder works.

Cc: 12.0 13.0 <mesa-stable@lists.freedesktop.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Tested-by: Ilia Mirkin <imirkin@alum.mit.edu>
Tested-by: Nayan Deshmukh <nayan26deshmukh@gmail.com> (I+A)