radv: call radv_get_legacy_gs_info after ac_nir_lower_legacy_gs

The pass will determíne the GSVS ring size, so radv_get_legacy_gs_info
must be called after that.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35473>
3 files changed