Allow third party condition providers.

Bug: 22977552
Change-Id: I3d8689f52daa9376496e14997a6dd7862fb3ade6
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index fefd5a7..5d9ca72 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -2567,10 +2567,11 @@
     <permission android:name="android.permission.BIND_CHOOSER_TARGET_SERVICE"
         android:protectionLevel="signature" />
 
-    <!-- @SystemApi Must be required by a {@link
+    <!-- Must be required by a {@link
          android.service.notification.ConditionProviderService},
          to ensure that only the system can bind to it.
-         @hide -->
+         <p>Protection level: signature
+         -->
     <permission android:name="android.permission.BIND_CONDITION_PROVIDER_SERVICE"
         android:protectionLevel="signature" />