Let extra apps launch channel settings.

Test: manual
Change-Id: I689c0b35224dffc306ecbfa6f25ad3f072cd4dba
diff --git a/src/com/android/settings/Settings.java b/src/com/android/settings/Settings.java
index 66e5b33..ab61fdd 100644
--- a/src/com/android/settings/Settings.java
+++ b/src/com/android/settings/Settings.java
@@ -124,6 +124,7 @@
     public static class ConfigureNotificationSettingsActivity extends SettingsActivity { /* empty */ }
     public static class NotificationAppListActivity extends SettingsActivity { /* empty */ }
     public static class AppNotificationSettingsActivity extends SettingsActivity { /* empty */ }
+    public static class ChannelNotificationSettingsActivity extends SettingsActivity { /* empty */ }
     public static class OtherSoundSettingsActivity extends SettingsActivity { /* empty */ }
     public static class ManageDomainUrlsActivity extends SettingsActivity { /* empty */ }
     public static class AutomaticStorageManagerSettingsActivity extends SettingsActivity { /* empty */ }