radeonsi: add new polaris12 pci id

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: 17.0 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit c2a97fb7ae991fa52adfd1dabbebbe1803261863)
1 file changed