radv: handle depth/stencil image copy with layouts better. (v3.1)

radv: handle depth/stencil image copy with layouts better. (v3.1)

If we are doing a general->general transfer with HIZ enabled,
we want to hit the tile surface disable bits in radv_emit_fb_ds_state,
however we never get the current layout to know we are in general
and meta hardcoded the transfer layout which is always tile enabled.

This fixes:
dEQP-VK.api.copy_and_blit.core.image_to_image.all_formats.depth_stencil.d32_sfloat_s8_uint_d32_sfloat_s8_uint.optimal_general
dEQP-VK.api.copy_and_blit.core.image_to_image.all_formats.depth_stencil.d32_sfloat_s8_uint_d32_sfloat_s8_uint.general_general

v2: refactor some shared helpers for blit patches
v3: we only need multiple render passes as they should be compatible.
v3.1: use enum (Bas)

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Cc: "17.2 17.3" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>