radeonsi: extend workaround for KHR-GL45.texture_view.view_classes on gfx9

radeonsi: extend workaround for KHR-GL45.texture_view.view_classes on gfx9

This is a followup of 19db1a540c248e330284a6c9733633d0695677a3.
This commit fixed KHR-GL45.texture_view.view_classes on gfx9 but the test
still failed when using AMD_DEBUG=nodma or AMD_DEBUG=nodcc,nodma.

The workaround is now used from si_resource_copy_region so it covers the
previous call site (si_texture_transfer_map) and the sctx->dma_copy
fallback code.

Fixes: 19db1a540c2 ("radeonsi: add a workaround to fix KHR-GL45.texture_view.view_classes on gfx9")
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6115>