Snap for 4574286 from 4bf309ee56108e775a2d8f9676ee5b91c025b199 to pi-release

Change-Id: I3483a86a4bf6f8a2603689b24443cdbd34a26f8e
diff --git a/Android.mk b/Android.mk
new file mode 100644
index 0000000..3622a71
--- /dev/null
+++ b/Android.mk
@@ -0,0 +1,5 @@
+# Intentially empty, to prevent recursion
+#
+# There is an NDK test under modules/audio_procesing/test. The NDK build system
+# uses Android.mk files too, but they're not compatible with the Platform
+# Android.mk files.