fix IS_I9XX macro in i915 DRM driver

Now that we're mapping registers in the DRM driver at load time, the
driver actually checks the PCI ID, so we need to make sure the macros
have all the right bits (and longer term use the DRM headers as the sole
copy of the PCI & register definitions).

This patch adds 945GME support to the DRM headers, fixing a regression
reported in http://bugzilla.kernel.org/show_bug.cgi?id=10395.
Tested-by: Alexander Oltu <alexander@all-2.com>
Signed-off-by: Jesse Barnes <jesse.barnes@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/char/drm/i915_drv.h

@@ -1092,8 +1092,8 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
 #define IS_I915G(dev) ((dev)->pci_device == 0x2582 || (dev)->pci_device == 0x258a)
 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
-#define IS_I945GM(dev) ((dev)->pci_device == 0x27A2)
-
+#define IS_I945GM(dev) ((dev)->pci_device == 0x27A2 ||\
+		        (dev)->pci_device == 0x27AE)
 #define IS_I965G(dev) ((dev)->pci_device == 0x2972 || \
 		       (dev)->pci_device == 0x2982 || \
 		       (dev)->pci_device == 0x2992 || \