Xwayland seems to mix implicit and explicit sync, depending on client
app. This trips up the heuristic that disables implicit sync once it
starts seeing app using explicit sync. This is not typical behavior,
so add a driconf override to disable the heuristic.
Fixes: 137cd3b0fa ("freedreno/drm: Move no_implicit_sync accounting")
Cc: mesa-stable
Signed-off-by: Rob Clark <rob.clark@oss.qualcomm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37703>
e60d34fa78