drm/amdgpu: add navi14 PCI ID for work station SKU

Add the navi14 PCI device id.

Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>