radv: don't do format replacement on tc compat htile surfaces.

For copies the texture unit needs to know the depth format so
it can read the htile data properly.

This fixes:
dEQP-VK.renderpass.suballocation.formats.d32_sfloat_s8_uint.load.clear

Fixes: ad3d98da (radv: enable tc compatible htile for d32s8 also.)
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit d2acf97e)