Build fix: Updating SDK for tests

Change-Id: I1377dce808335f65eb0799b7053c84853f57980a
diff --git a/tests/Android.mk b/tests/Android.mk
index 0c4b5ff..61ee220 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -21,7 +21,7 @@
 
 LOCAL_SRC_FILES := $(call all-java-files-under, src)
 
-LOCAL_SDK_VERSION := 23
+LOCAL_SDK_VERSION := current
 
 LOCAL_PACKAGE_NAME := Launcher3Tests