radv: enable DCC for MSAA on GFX10+
It should work fine now. This gives +1-2% improvements with Control MSAA (2x and 4x) on Sienna. Signed-off-by:Samuel Pitoiset <samuel.pitoiset@gmail.com> Reviewed-by:
Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Part-of: <mesa/mesa!8413>