drm/amdgpu/display: fix pci revision id fetching

Use the pci revision id rather than the asic silicon revision id.

Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Aly-Tawfik <altawfik@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Aly-Tawfik 2020-02-25 14:56:37 -05:00 • committed by Alex Deucher
commit 2dc31ca189