base: fix ACTION_NOTIFICATION_LISTENER_SETTINGS intent name

Although android.provider.Settings#ACTION_NOTIFICATION_LISTENER_SETTINGS has the proper
name (android.settings.NOTIFICATION_LISTENER_SETTINGS), the rest code (Settings fragment,
cts,...) are using the name "android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS".
This cause that apps with notification listener services declared could not open the
setting activity from running apps settings fragment (the pending intent isn't found).

For convenience, this change fixes the name here instead of change all the entries in
the rest of the aosp code.