Create a provider for querying if embedding activity is enabled

Bug: 202103027
Test: manual
Change-Id: I97bd5fc9d1d6157ff11096678217f44175df0c8d
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index a34713d..2227a25 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -3675,6 +3675,11 @@
             </intent-filter>
         </provider>
 
+        <provider
+            android:name=".activityembedding.ActivityEmbeddingProvider"
+            android:authorities="com.android.settings.activityembedding"
+            android:exported="true"/>
+
         <activity
             android:name=".wifi.dpp.WifiDppConfiguratorActivity"
             android:exported="true">