Move LockSettingsService into locksettings package.

This service now has a large number of support classes so move them into
their own package to keep things tidy and easier to refactor.

Bug: 37090873
Test: runtest frameworks-services -c com.android.server.locksettings.LockSettingsServiceTests
Test: runtest frameworks-services -c com.android.server.locksettings.LockSettingsShellCommandTest
Test: runtest frameworks-services -c com.android.server.locksettings.SyntheticPasswordTests
Change-Id: Ic3cd00e6565749defd74498a3491c3d9b914ad90
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index c7d6b21..1efe102 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -177,7 +177,7 @@
     private static final String JOB_SCHEDULER_SERVICE_CLASS =
             "com.android.server.job.JobSchedulerService";
     private static final String LOCK_SETTINGS_SERVICE_CLASS =
-            "com.android.server.LockSettingsService$Lifecycle";
+            "com.android.server.locksettings.LockSettingsService$Lifecycle";
     private static final String STORAGE_MANAGER_SERVICE_CLASS =
             "com.android.server.StorageManagerService$Lifecycle";
     private static final String STORAGE_STATS_SERVICE_CLASS =