Match src paths with aidl package name

In order for the build system to track updates to the header files
during incremental builds, always specify the src files using the same
path as the package for C++ compilations.

Bug: 112114177
Test: treehugger
Change-Id: Id548ddd598cac18886da42f06c07540942a306ed
diff --git a/Android.bp b/Android.bp
index abe2947..fad4ef1 100644
--- a/Android.bp
+++ b/Android.bp
@@ -814,6 +814,7 @@
         "core/java/android/os/IStatsManager.aidl",
         "core/java/android/os/IStatsPullerCallback.aidl",
     ],
+    path: "core/java",
 }
 
 filegroup {