Add '-unstable' to solve ODR violation am: 44b2f954be

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/vold/+/12377824

Change-Id: I9f3d00625a59390efdb926cde389729a71be7fa7
diff --git a/Android.bp b/Android.bp
index 593dd27..4852fe4 100644
--- a/Android.bp
+++ b/Android.bp
@@ -89,7 +89,7 @@
         export_aidl_headers: true,
     },
     whole_static_libs: [
-        "libincremental_aidl-cpp",
+        "libincremental_aidl-unstable-cpp",
     ],
 }