Face Biometric Virtual HAL

Bug: 294254230
Test: Manual
Change-Id: I00813b1313510e0965cb91864163e182e10aea22
diff --git a/compatibility_matrices/compatibility_matrix.9.xml b/compatibility_matrices/compatibility_matrix.9.xml
index 9a9af1c..57fa2bf 100644
--- a/compatibility_matrices/compatibility_matrix.9.xml
+++ b/compatibility_matrices/compatibility_matrix.9.xml
@@ -120,6 +120,7 @@
         <interface>
             <name>IFace</name>
             <instance>default</instance>
+            <instance>virtual</instance>
         </interface>
     </hal>
     <hal format="aidl" optional="true" updatable-via-apex="true">