Move power manager to a new package.

Change-Id: I5f5a6435e64354b7d6535e8e9a63934ba7a3f448
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index 7e733c6..ed7b6e3 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -55,7 +55,8 @@
 import com.android.server.net.NetworkPolicyManagerService;
 import com.android.server.net.NetworkStatsService;
 import com.android.server.pm.PackageManagerService;
-import com.android.server.pm.ShutdownThread;
+import com.android.server.power.PowerManagerService;
+import com.android.server.power.ShutdownThread;
 import com.android.server.usb.UsbService;
 import com.android.server.wm.WindowManagerService;