drm/amdgpu: disable virtual display support on APP device

virtual display is not support on APP device.
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Gavin Wan <gavin.wan@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -56,7 +56,8 @@ void amdgpu_virt_init_setting(struct amdgpu_device *adev)
 
 	/* enable virtual display */
 	if (adev->asic_type != CHIP_ALDEBARAN &&
-	    adev->asic_type != CHIP_ARCTURUS) {
+	    adev->asic_type != CHIP_ARCTURUS &&
+	    ((adev->pdev->class >> 8) != AMD_ACCELERATOR_PROCESSING)) {
 		if (adev->mode_info.num_crtc == 0)
 			adev->mode_info.num_crtc = 1;
 		adev->enable_virtual_display = true;