anv: apply ANV_BO_ALLOC_IMPLICIT_SYNC for external memory
This is necessary to make anv work with clients like VA-API which relies on implicit fencing only. The bahavior matches iris i915_batch_submit.
Closes: #8998 (closed)
This is necessary to make anv work with clients like VA-API which relies on implicit fencing only. The bahavior matches iris i915_batch_submit.
Closes: #8998 (closed)