Should be updating voice icon as well on search packages changed. (Bug: 5352338)

Change-Id: I5a30e56b871556027d50e442e3f385b1a29a2850
diff --git a/src/com/android/launcher2/Launcher.java b/src/com/android/launcher2/Launcher.java
index e4ed31f..82dc8c4 100644
--- a/src/com/android/launcher2/Launcher.java
+++ b/src/com/android/launcher2/Launcher.java
@@ -2937,6 +2937,7 @@
     @Override
     public void bindSearchablesChanged() {
         updateGlobalSearchIcon();
+        updateVoiceSearchIcon();
     }
 
     /**