0x4c6e is a secondary device id so should not be used
by the driver.
Noticed-by: Mark Kettenis <mark.kettenis@xs4all.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

(cherry picked from commit 8c3e4347)
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>