Privapp IntentResolver += PACKAGE_USAGE_STATS

This permission is required to query AppPredictionService.

When the unbundled Chooser doesn't request this permission,
we get a SecurityException attempting to invoke
createPredictionSession(). When we request the permission
but don't add it to this allow-list, the device boot-loops.
With the permission added in both places (and some other
local changes), the unbundled Chooser is able to show the
full set of app predictions.

Test: Manual, as described above.
Bug: 206831012
Change-Id: I154d0555471f7f8820ac151b77a61cb8d9bf7603

data/etc/com.android.intentresolver.xml

@@ -18,5 +18,6 @@
     <privapp-permissions package="com.android.intentresolver">
         <permission name="android.permission.INTERACT_ACROSS_USERS"/>
         <permission name="android.permission.MANAGE_USERS"/>
+        <permission name="android.permission.PACKAGE_USAGE_STATS"/>
     </privapp-permissions>
 </permissions>