Retry test-runner tests move.

This time change the frameworks makefile so it only includes test-runner/src
in the public API.
diff --git a/Android.mk b/Android.mk
index 1700965..06db582 100644
--- a/Android.mk
+++ b/Android.mk
@@ -276,7 +276,7 @@
 # Search through the base framework dirs for these packages.
 # The result will be relative to frameworks/base.
 fwbase_dirs_to_document := \
-	test-runner \
+	test-runner/src \
 	$(patsubst $(LOCAL_PATH)/%,%, \
 	  $(wildcard \
 	    $(foreach dir, $(FRAMEWORKS_BASE_JAVA_SRC_DIRS), \