freedreno/ir3: set more barrier bits

Blob is also setting the .l bit, and it seems to solve some intermittent
failures with a couple of deqp's:

dEQP-GLES31.functional.image_load_store.2d.qualifiers.coherent_r32i
dEQP-GLES31.functional.image_load_store.2d.qualifiers.volatile_r32f

Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit f9fa456e)