freedreno: Stop scattered remapping of SSBOs/images to IBOs.

freedreno: Stop scattered remapping of SSBOs/images to IBOs.

Just make it be all SSBOs then all storage images.  The remapping table
was there to make it so that the big gap present from gallium's atomic
lowering would get cleaned up, but that's no longer case.  The table has
made it very hard to support Vulkan storage images, so it's time for it to
go.

This does mean that an SSBO/IBO that is only loaded (or size-queried) will
now occupy a slot in the table where it wouldn't before.  This seems like
a minor cost compared to being able to drop this much logic.

With the remapping table gone, SSBO array handling for turnip just falls
out.

Fixes many array cases of
dEQP-VK.binding_model.shader_access.primary_cmd_buf.storage_buffer.*

Reviewed-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jonathan Marek <jonathan@marek.ca> (turnip)
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3240>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3240>