drm_meson: use async commit in kms_post_buf [2/2]

PD#SWPL-32508

Problem:
multiple player clints cannot post
at same time.

Solution:
add async commit.

Verify:
verify on ab311

Change-Id: I11bb6316483770404272003739489d3ec6860463
Signed-off-by: sky zhou <sky.zhou@amlogic.com>
5 files changed
tree: 7fd5e0c019d0e354d925ebb7760881b3c15ea6ca
  1. drm-tests/
  2. meson/
  3. drm_fourcc.h
  4. meson_drm.h