GlobalSearch does not have it's own music provider anymore so enable the
Music app to show suggestions in global search.
Related bug - http://b/issue?id=
1819601
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/search_title"
+ android:includeInGlobalSearch="true"
android:searchSuggestAuthority="media"
android:searchSuggestPath="external/audio/search"
+ android:searchSuggestThreshold="3"
android:searchSuggestIntentAction="android.intent.action.VIEW"
/>