anv: enable multiple planes per image/imageView

anv: enable multiple planes per image/imageView

This change introduce the concept of planes for image & views. It
matches the planes available in new formats.

We also refactor depth & stencil support through the usage of planes
for the sake of uniformity. In the backend (genX_cmd_buffer.c) we have
to take some care though with regard to auxilliary surfaces.
Multiplanar color buffers can have multiple auxilliary surfaces but
depth & stencil share the same HiZ one (only store in the depth
plane).

v2: by Jason
    Remove unused aspect parameters from anv_blorp.c
    Assert when attempting to resolve YUV images
    Drop redundant logic for plane offset in make_surface()
    Rework anv_foreach_plane_aspect_bit()

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>