Add uses feature managed profiles to Launcher3 manifest.

Change-Id: If2143424f0d89cc1ed4e504d37106ea52e067e1f
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index d4cd6a2..c56de07 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -69,6 +69,8 @@
     <uses-permission android:name="com.android.launcher3.permission.WRITE_SETTINGS" />
     <uses-permission android:name="com.android.launcher3.permission.RECEIVE_LAUNCH_BROADCASTS" />
 
+    <uses-feature android:name="android.software.managed_profiles" android:required="false"/>
+
     <application
         android:name="com.android.launcher3.LauncherApplication"
         android:label="@string/application_name"