pan/mdg: Legalize inverts with constants
We need to force src_invert to be in the right place even if we flip when lowering an embedded->inline constant.
Signed-off-by: Alyssa Rosenzweig alyssa.rosenzweig@collabora.com Fixes: 449e5ded ("pan/mdg: Treat inot as a modifier") Reported-by: Icecream95 ixn@keemail.me