Input: aiptek - fixed mouse button defines

Mouse button defines tested the wrong bits, now fixed

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/tablet/aiptek.c

@@ -264,9 +264,9 @@
 
 	/* Mouse button programming
 	 */
-#define AIPTEK_MOUSE_LEFT_BUTTON		0x01
-#define AIPTEK_MOUSE_RIGHT_BUTTON		0x02
-#define AIPTEK_MOUSE_MIDDLE_BUTTON		0x04
+#define AIPTEK_MOUSE_LEFT_BUTTON		0x04
+#define AIPTEK_MOUSE_RIGHT_BUTTON		0x08
+#define AIPTEK_MOUSE_MIDDLE_BUTTON		0x10
 
 	/* Stylus button programming
 	 */