drm/i915: Include 965GME pci ID in IS_I965GM(dev) to match UMS.

It fixed bug #21659
Signed-off-by: NMa Ling <ling.ma@intel.com>
[anholt: hand-applied because git-am is too picky]
Signed-off-by: NEric Anholt <eric@anholt.net>

drivers/gpu/drm/i915/i915_drv.h

@@ -786,7 +786,8 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
 		       (dev)->pci_device == 0x2E22 || \
 		       (dev)->pci_device == 0x2E32)
 
-#define IS_I965GM(dev) ((dev)->pci_device == 0x2A02)
+#define IS_I965GM(dev) ((dev)->pci_device == 0x2A02 || \
+			(dev)->pci_device == 0x2A12)
 
 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)