Add stubs needed to enable javac to compile lambdas

This enables framework.jar code to include lambdas.
framework.jar is still built with javac (as well as
jack) for things like doclava.

Bug: 26753820
Change-Id: I25030b3fa3abdec5b325182bd0a665ba964176c0
diff --git a/Android.mk b/Android.mk
index 6ec434c..46bf460 100644
--- a/Android.mk
+++ b/Android.mk
@@ -455,7 +455,7 @@
 			$(framework_res_source_path)/com/android/internal/R.java
 
 LOCAL_NO_STANDARD_LIBRARIES := true
-LOCAL_JAVA_LIBRARIES := core-oj core-libart conscrypt okhttp core-junit bouncycastle ext
+LOCAL_JAVA_LIBRARIES := core-oj core-libart core-lambda-stubs conscrypt okhttp core-junit bouncycastle ext
 LOCAL_STATIC_JAVA_LIBRARIES := framework-protos
 
 LOCAL_MODULE := framework