drm/amdkfd: Set iolink non-coherent in topology

Fix non-coherent bit of iolink properties flag
which always is 0.

Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>