Settings: New DND access settings page.

 - New advanced notification settings subpage for managing apps
   that have requested the ability to manage notification policy.
 - Create new "Advanced" section at the bottom of notification settings
   for this and the existing Notification access settings page.

Bug: 18298798
Change-Id: Ib415e634980d37d6492799f67a6619700ee2a01c
diff --git a/src/com/android/settings/Settings.java b/src/com/android/settings/Settings.java
index b91275a..5a6a2f0 100644
--- a/src/com/android/settings/Settings.java
+++ b/src/com/android/settings/Settings.java
@@ -91,6 +91,7 @@
     public static class NotificationStationActivity extends SettingsActivity { /* empty */ }
     public static class UserSettingsActivity extends SettingsActivity { /* empty */ }
     public static class NotificationAccessSettingsActivity extends SettingsActivity { /* empty */ }
+    public static class ZenAccessSettingsActivity extends SettingsActivity { /* empty */ }
     public static class ConditionProviderSettingsActivity extends SettingsActivity { /* empty */ }
     public static class UsbSettingsActivity extends SettingsActivity { /* empty */ }
     public static class TrustedCredentialsSettingsActivity extends SettingsActivity { /* empty */ }