anv/cmd_buffer: Fix arrayed depth/stencil attachments
Enable multiple layers of the depth/stencil buffers to be accessible. Fixes the crucible test, func.depthstencil.arrayed_clear. Cc: mesa-stable@lists.freedesktop.org Signed-off-by:Nanley Chery <nanley.g.chery@intel.com> Reviewed-by:
Jason Ekstrand <jason@jlekstrand.net> (cherry picked from commit 61992e0a)