drm: add device/vendor id to drm_device_t for compat with FreeBSD drivers

Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c
index a9bb18a..7b1d4e8 100644
--- a/drivers/char/drm/drm_stub.c
+++ b/drivers/char/drm/drm_stub.c
@@ -65,6 +65,8 @@
 	mutex_init(&dev->ctxlist_mutex);
 
 	dev->pdev = pdev;
+	dev->pci_device = pdev->device;
+	dev->pci_vendor = pdev->vendor;
 
 #ifdef __alpha__
 	dev->hose = pdev->sysdata;