glamor: Enable dmabuf_capable by default on Intel hardware
With the potential modeset vs. modifiers issue covered by commit 899c87af ("modesetting: unflip before any setcrtc() calls") we can safely enable modifiers by default, at least on Intel hardware where we know that things work properly.
I suppose the one open question is whether everything will work correctly with wonky multi-GPU setups? I don't have one to test myself.
Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com