drm/i915: add mappable to gem_object_bind tracepoint

This way we can make some more educated guesses as to why exactly
we can't use 2G apertures to their full potential ;)

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2 files changed