drm/amdgpu: Bypass GMC/UVD/VCE hw_fini in SR-IOV

On vega10, some hw finish operations should not be applied in SR-IOV
case. This works as workaround to fix multi-VFs reboot/shutdown
issues.

Signed-off-by: Trigger Huang <trigger.huang@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>