Input: expand keycode space

Expand the number of potential key codes from 512 to 768 since people
are coming up with more and more keys.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index c4db582..0dddfa4 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -274,7 +274,7 @@
 /* Input */
 #define INPUT_DEVICE_ID_EV_MAX		0x1f
 #define INPUT_DEVICE_ID_KEY_MIN_INTERESTING	0x71
-#define INPUT_DEVICE_ID_KEY_MAX		0x1ff
+#define INPUT_DEVICE_ID_KEY_MAX		0x2ff
 #define INPUT_DEVICE_ID_REL_MAX		0x0f
 #define INPUT_DEVICE_ID_ABS_MAX		0x3f
 #define INPUT_DEVICE_ID_MSC_MAX		0x07