panfrost: Only key points to point coord origin
Apparently, the point coord origin within a batch can change with Gallium (seemingly even with GLES? where that's impossible at an API level?) but that doesn't matter if we're not drawing points. This might have to do with internal Gallium CSOs (e.g. u_blitter). Issue noticed in SuperTuxKart, which was getting state change flushes. Performance on one level on a Valhall GPU improved from 26fps to 29fps.
Fixes: 3641dfe4 ("panfrost: Flip point coords in hardware") Signed-off-by: Alyssa Rosenzweig alyssa@collabora.com