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/drmP.h b/drivers/char/drm/drmP.h
index 4363f6e..7690a59 100644
--- a/drivers/char/drm/drmP.h
+++ b/drivers/char/drm/drmP.h
@@ -723,6 +723,8 @@
 	drm_agp_head_t *agp;	/**< AGP data */
 
 	struct pci_dev *pdev;		/**< PCI device structure */
+	int pci_vendor;			/**< PCI vendor id */
+	int pci_device;			/**< PCI device id */
 #ifdef __alpha__
 	struct pci_controller *hose;
 #endif