anv: Store depth stencil layouts

Store the current and requested depth stencil layouts so that we can
perform the appropriate HiZ resolves for a given transition while
recording a render pass.

Signed-off-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

src/intel/vulkan/genX_cmd_buffer.c

@@ -480,6 +480,7 @@ genX(cmd_buffer_setup_attachments)(struct anv_cmd_buffer *cmd_buffer,
             }
          }
 
+         state->attachments[i].current_layout = att->initial_layout;
          state->attachments[i].pending_clear_aspects = clear_aspects;
          if (clear_aspects)
             state->attachments[i].clear_value = begin->pClearValues[i];