We can just add the flags to the kopper interface, since it's private to
Mesa. This gets us depth/stencil invalidation on swapbuffers, which is
critical for tiler performance.
glmark2-es2 -b texture (windowed) goes from 1650 to 1930 fps on
zink+turnip with ZINK_DEBUG=rp.
Part of #7321 (we're still a little behind freedreno's 2180 fps)
Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21317>
6de8b9a65b