Default hal for Occupant Awareness.

Bug: 142383127
Test: Verified that the system starts the default hal automatically.
Change-Id: I851f85bc283165891943b82c6c07f3273847b032
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index 4bd8332..c9eb6d4 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -49,6 +49,13 @@
             <instance>default</instance>
         </interface>
     </hal>
+    <hal format="aidl" optional="true">
+        <name>android.hardware.automotive.occupant_awareness</name>
+        <interface>
+            <name>IOccupantAwareness</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.automotive.vehicle</name>
         <version>2.0</version>