st/mesa: make texture views inherit compressed_data storage

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/2775
Fixes: c3fafa127a0 ("st/mesa: generalize code for the compressed texture map/unmap fallback")
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5492>
2 files changed