zink: only emit runtime array for ssbos if present

zink: only emit runtime array for ssbos if present

it's impossible to accurately determine whether an op will use the base,
sized array or the unsized array due to dynamic indexing, and thus it's
impossible to not violate spec by emitting both arrays at offset=0 so they
can overlap

so instead, just emit the runtime array and blast all bounds checking in
vk drivers into the void

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18784>