drm/amd/display: Program meta addresses correctly

[Why]
When forcing 3D mode in DAL, we set the right address to be the same as the
left address. We need to do the same for the meta addresses.

[How]
Program right meta to be same as left meta.

Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>