The base offsets of the IP blocks may change across
asics even though the relative register offsets
are the same for an IP.  Handle this dynamically.
Acked-by: NChristian Konig <christian.koenig@amd.com>
Signed-off-by: NShaoyun Liu <Shaoyun.Liu@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>