virgl: Cache depth and stencil buffers
Expand the list of bind flags to cache depth and stencil buffers.
Extensive testing shows the following performance improvements:
Game | % difference in FPS
Plague Inc | 7
Portal 2 | 21
Overcooked 2 | 1.2
Hollow Knight | -1.1
Civilization V | 3.8
Signed-off-by: Rohan Garg rohan.garg@collabora.com