Hardcode the IP versions for asics without IP discovery tables
and then enumerate the asics based on the IP versions.

TODO: fix SR-IOV support

v2: Squash in HDP fix for Renoir
Acked-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>