Add frozen field to vibrator am: 68c5898e4e

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/3270772

Change-Id: I6812a4424967cfa19279d3dfc8d9edb7822a35bf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/vibrator/aidl/Android.bp b/vibrator/aidl/Android.bp
index b5199e2..d3b72ee 100644
--- a/vibrator/aidl/Android.bp
+++ b/vibrator/aidl/Android.bp
@@ -25,4 +25,5 @@
         "1",
         "2",
     ],
+    frozen: true,
 }