overlays/gapps: Define default screening app

Signed-off-by: Jackeagle <jackeagle102@gmail.com>
diff --git a/overlay/gapps/frameworks/base/core/res/res/values/config.xml b/overlay/gapps/frameworks/base/core/res/res/values/config.xml
index 7e218c4..bbb6f24 100644
--- a/overlay/gapps/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/gapps/frameworks/base/core/res/res/values/config.xml
@@ -115,6 +115,9 @@
     <!-- The name of the package that will hold the dialer role by default. -->
     <string name="config_defaultDialer" translatable="false">com.google.android.dialer</string>
 
+    <!-- The name of the package that will hold the call screening role by default. -->
+    <string name="config_defaultCallScreening" translatable="false">com.google.android.dialer</string>
+
     <!-- Flag indicating whether the assist disclosure can be disabled using
          ASSIST_DISCLOSURE_ENABLED. -->
     <bool name="config_allowDisablingAssistDisclosure">true</bool>