drm/amdgpu: Add an extra evict_resource call during device_suspend.

- evict_resource is taking too long causing sriov full access mode timeout.
  So, add an extra evict_resource in the beginning as an early evict.
Signed-off-by: Shikang Fan <shikang.fan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

@@ -4112,6 +4112,11 @@ int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
 
 	adev->in_suspend = true;
 
+	/* Evict the majority of BOs before grabbing the full access */
+	r = amdgpu_device_evict_resources(adev);
+	if (r)
+		return r;
+
 	if (amdgpu_sriov_vf(adev)) {
 		amdgpu_virt_fini_data_exchange(adev);
 		r = amdgpu_virt_request_full_gpu(adev, false);