Expose BroadcastOptions#setMaxManifestReceiverApiLevel as system API

Connectivity service is going to become a mainline module which
will not able to access hidden APIs. But it needs
BroadcastOptions#setMaxManifestReceiverApiLevel to restrict the
receiving of CONNECTIVITY_ACTION intent. Thus, expose it as a
system API to support the usage.

Bug: 170593746
Test: atest FrameworksNetTests
Test: atest CtsNetApi23TestCases
Test: atest KeyChainTests
Change-Id: Ic45552174c3f9e74141db4495bb99a582000b574

core/api/module-lib-current.txt

@@ -11,6 +11,11 @@ package android.app {
     field public static final String OPSTR_NO_ISOLATED_STORAGE = "android:no_isolated_storage";
   }
 
+  public class BroadcastOptions {
+    method public int getMaxManifestReceiverApiLevel();
+    method public void setMaxManifestReceiverApiLevel(int);
+  }
+
   public abstract class HomeVisibilityListener {
     ctor public HomeVisibilityListener();
     method public abstract void onHomeVisibilityChanged(boolean);

core/java/android/app/BroadcastOptions.java

@@ -127,6 +127,7 @@ public class BroadcastOptions {
      * them.  This only applies to receivers declared in the app's AndroidManifest.xml.
      * @hide
      */
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public void setMaxManifestReceiverApiLevel(int apiLevel) {
         mMaxManifestReceiverApiLevel = apiLevel;
     }
@@ -135,6 +136,7 @@ public class BroadcastOptions {
      * Return {@link #setMaxManifestReceiverApiLevel}.
      * @hide
      */
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public int getMaxManifestReceiverApiLevel() {
         return mMaxManifestReceiverApiLevel;
     }