Mark some aidl_interface modules as unstable am: 5e06a0a2fb am: 66478cb04b

Change-Id: I9d7e620c64f28447f95eae0e66848985121bf61a
diff --git a/Android.bp b/Android.bp
index 174567b..160a220 100644
--- a/Android.bp
+++ b/Android.bp
@@ -111,6 +111,7 @@
 
 aidl_interface {
     name: "gsi_aidl_interface",
+    unstable: true,
     srcs: [":gsiservice_aidl"],
     local_include_dir: "aidl",
     backend: {