radv/gfx10: fix implementation of exclusive scans
It was incomplete, loosely based on AMDVLK. Wave32 still has to be fixed but it was broken before anyways, and it's only enabled via an envvar.
This fixes dEQP-VK.subgroups.arithmetic..subgroupexclusive
Fixes: 227c29a8 ("amd/common/gfx10: implement scan & reduce operations") Signed-off-by: Samuel Pitoiset samuel.pitoiset@gmail.com