anv: Put robust buffer access in the pipeline hash

It affects apply_pipeline_layout.  Shaders compiled with the wrong value
will work but they may not be robust as requested by the app.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
(cherry picked from commit 617e402b)
[Juan A. Suarez: resolve trivial conflicts]
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>

Conflicts:
	src/intel/vulkan/anv_pipeline.c