drm/amdgpu: configure the doorbell settings for sdma on non-AID0

Configure the sdma doorbell settings on NBIF0 and SYSHUB of each AID

v2: fetch aid_id from amdgpu_sdma_instance (Lijo)

Signed-off-by: Le Ma <le.ma@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>