Add FX_KEYPRESS_INVALID constant to AudioManager.

Add FX_KEYPRESS_INVALID constant to AudioManager. This is a sound which should
play if the user tries to click or press on an element which is disabled.

Change-Id: Idd8953abeddd1afb51f7f190f9fb612ef672defa
diff --git a/data/sounds/AllAudio.mk b/data/sounds/AllAudio.mk
index 8b03bf7..ed9bea5 100644
--- a/data/sounds/AllAudio.mk
+++ b/data/sounds/AllAudio.mk
@@ -221,6 +221,7 @@
     $(LOCAL_PATH)/effects/ogg/KeypressReturn_120_48k.ogg:system/media/audio/ui/KeypressReturn.ogg \
     $(LOCAL_PATH)/effects/ogg/KeypressSpacebar_120_48k.ogg:system/media/audio/ui/KeypressSpacebar.ogg \
     $(LOCAL_PATH)/effects/ogg/KeypressStandard_120_48k.ogg:system/media/audio/ui/KeypressStandard.ogg \
+    $(LOCAL_PATH)/effects/ogg/KeypressInvalid_120_48k.ogg:system/media/audio/ui/KeypressInvalid.ogg \
     $(LOCAL_PATH)/effects/ogg/Lock.ogg:system/media/audio/ui/Lock.ogg \
     $(LOCAL_PATH)/effects/ogg/LowBattery.ogg:system/media/audio/ui/LowBattery.ogg \
     $(LOCAL_PATH)/effects/ogg/Undock.ogg:system/media/audio/ui/Undock.ogg \