Move CALL_PRIVILEGED/EMERGENCY to @SystemApi

CALL_PRIVILEGED and CALL_EMERGENCY APIs are used
by vendors and Android Wear and should be moved
to @SystemApi to pass CTS tests.

Bug: 36566521
Test: CTS tests
Change-Id: I73a0b2c4e551b4738c4c322d9822a85ee19d269b
diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index 116224b..81aea8d 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -1093,6 +1093,8 @@
      * <p>Output: nothing.
      * @hide
      */
+    @SystemApi
+    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
     public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
     /**
      * Activity action: Perform a call to any number (emergency or not)
@@ -1102,6 +1104,8 @@
      * <p>Output: nothing.
      * @hide
      */
+    @SystemApi
+    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
     public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
 
     /**