drm/amdgpu: set sdma v4_4_2 ip block

Use sdma 4.4.2 IP block for chips with sdma 4.4.2 hardware.

Signed-off-by: Le Ma <le.ma@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>