Change namespace of ACTION_REQUEST_SHUTDOWN.

Fixes: 36644580
Test: cts-tradefed run singleCommand cts-dev -m CtsSignatureTestCases -t android.signature.cts.IntentTest
      and Device power-off works
Change-Id: I63f461157a63305cd08c5dc42293730be4eb657f
diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index 7890a96..26462d7 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -2447,7 +2447,8 @@
      *
      * {@hide}
      */
-    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
+    public static final String ACTION_REQUEST_SHUTDOWN
+            = "com.android.internal.intent.action.REQUEST_SHUTDOWN";
     /**
      * Broadcast Action: A sticky broadcast that indicates low storage space
      * condition on the device