Update AIDL IVibratorManager manifest version to 2.

Test: vts_treble_vintf_test
Bug: 150034914
Change-Id: Idb9156a279b2aa942a7772e0e9150bb55aaa23d8
diff --git a/vibrator/aidl/default/vibrator-default.xml b/vibrator/aidl/default/vibrator-default.xml
index 9f9cd40..137a811 100644
--- a/vibrator/aidl/default/vibrator-default.xml
+++ b/vibrator/aidl/default/vibrator-default.xml
@@ -5,6 +5,7 @@
     </hal>
     <hal format="aidl">
         <name>android.hardware.vibrator</name>
+        <version>2</version>
         <fqname>IVibratorManager/default</fqname>
     </hal>
 </manifest>