There is no base reg offset or ip_version set for SDMA2
and SDMA3 on SIENNA_CICHLID, so add them.
Signed-off-by: NGuchun Chen <guchun.chen@amd.com>
Reviewed-by: NKevin Wang <kevinyang.wang@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>