Put authsecret example in VAPEX

authsecret example instance is put in APEX.

Bug: 296522705
Test: authsecret HAL starts from APEX in cuttlefish/goldfish
Merged-In: I226fd57fb1ec5c8da98c07292431df055e6078d7
Change-Id: I226fd57fb1ec5c8da98c07292431df055e6078d7
diff --git a/compatibility_matrices/compatibility_matrix.9.xml b/compatibility_matrices/compatibility_matrix.9.xml
index 40e98ac..d83cb78 100644
--- a/compatibility_matrices/compatibility_matrix.9.xml
+++ b/compatibility_matrices/compatibility_matrix.9.xml
@@ -52,7 +52,7 @@
             <instance>default</instance>
         </interface>
     </hal>
-    <hal format="aidl" optional="true">
+    <hal format="aidl" optional="true" updatable-via-apex="true">
          <name>android.hardware.authsecret</name>
          <version>1</version>
          <interface>