Add ACTION_USER_RESTRICTIONS_CHANGED to protetced-broadcast.

Test: cts-tradefed run cts-dev --skip-device-info --skip-preconditions --skip-system-status-check com.android.compatibility.common.tradefed.targetprep.NetworkConnectivityChecker -a armeabi-v7a -l INFO -m CtsDevicePolicyManagerTestCases -t 'com.android.cts.devicepolicy.UserRestrictionsTest#testUserRestrictions_deviceOwnerOnly'
Test: cts-tradefed run cts-dev --skip-device-info --skip-preconditions --skip-system-status-check com.android.compatibility.common.tradefed.targetprep.NetworkConnectivityChecker -a armeabi-v7a -l INFO -m CtsDevicePolicyManagerTestCases -t 'com.android.cts.devicepolicy.UserRestrictionsTest#testUserRestrictions_primaryProfileOwnerOnly'
Test: cts-tradefed run cts-dev --skip-device-info --skip-preconditions --skip-system-status-check com.android.compatibility.common.tradefed.targetprep.NetworkConnectivityChecker -a armeabi-v7a -l INFO -m CtsDevicePolicyManagerTestCases -t 'com.android.cts.devicepolicy.UserRestrictionsTest#testUserRestrictions_secondaryProfileOwnerOnly'

Bug: 36355208
Change-Id: I7a002c1f796a3d1f6241577e6284a8e74bb96749
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index a3edf8d..8abd022 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -525,6 +525,7 @@
     <protected-broadcast android:name="com.android.server.wm.ACTION_REVOKE_SYSTEM_ALERT_WINDOW_PERMISSION" />
 
     <protected-broadcast android:name="android.content.pm.action.SESSION_COMMITTED" />
+    <protected-broadcast android:name="android.os.action.USER_RESTRICTIONS_CHANGED" />
 
     <!-- ====================================================================== -->
     <!--                          RUNTIME PERMISSIONS                           -->