r600: ignore PIPE_BIND_LINEAR in *_is_format_supported

Similar to radeonsi linear layout should work for all not compressed
or depth/stencil formats. Fixes issues with VDPAU on r600.

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
2 files changed