ir3: memory_barrier also controls shared memory access order

nir_intrinsic_memory_barrier has the same semantic as memoryBarrier()
in GLSL, which is:

GLSL 4.60, 4.10. "Memory Qualifiers":
 "The built-in function memoryBarrier() can be used if needed to
 guarantee the completion and relative ordering of memory accesses
 performed by a single shader invocation."

GLSL 4.60, 8.17. "Shader Memory Control Functions":
 "The built-in functions memoryBarrier() and groupMemoryBarrier() wait
 for the completion of accesses to all of the above variable types."

Fixes tests:
 dEQP-VK.memory_model.message_passing.core11.u32.coherent.fence_fence.atomicwrite.device.payload_local.image.guard_nonlocal.workgroup.comp
 dEQP-VK.memory_model.message_passing.core11.u32.coherent.fence_fence.atomicwrite.device.payload_nonlocal.workgroup.guard_local.image.comp

Fixes: 819a613a ("freedreno/ir3: moar better scheduler")

Signed-off-by: Danylo Piliaiev <dpiliaiev@igalia.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9054>
3 files changed