Raven1/2 and Picasso have ISP 2.0.0, however their ISP blocks
are not in the IP discovery table yet.

This commit fixes this issue by adding new ISP entries for
Raven and Picasso in the IP discovery table.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Zhu Lingshan <lingshan.zhu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>