Stubs of android-support-multidex-instrumentation.

For the SDK.

(cherry picked from commit 584f6019106e5adc87f0f1a3bac75c31efe67f36)

Change-Id: I64b7d279a575c201c4df52a6bd3caa75baf58d11
diff --git a/core/pathmap.mk b/core/pathmap.mk
index 2b97dbf..0da90bd 100644
--- a/core/pathmap.mk
+++ b/core/pathmap.mk
@@ -111,7 +111,8 @@
         v7/mediarouter \
         v8/renderscript \
         v13 \
-        multidex
+        multidex \
+        multidex/instrumentation
 
 #
 # A version of FRAMEWORKS_SUPPORT_SUBDIRS that is expanded to full paths from