Introduce a new callback function to get client's UUID

Bug: 247124878
Test: compilation and manual test
Change-Id: I96b386fc232c4f65615858cf9b65317ae5bdc499
diff --git a/compatibility_matrices/compatibility_matrix.9.xml b/compatibility_matrices/compatibility_matrix.9.xml
index 0c6ae7b..29d6259 100644
--- a/compatibility_matrices/compatibility_matrix.9.xml
+++ b/compatibility_matrices/compatibility_matrix.9.xml
@@ -185,7 +185,7 @@
     </hal>
     <hal format="aidl" optional="true">
         <name>android.hardware.contexthub</name>
-        <version>2</version>
+        <version>3</version>
         <interface>
             <name>IContextHub</name>
             <instance>default</instance>