Correct way to specify additional dependencies

 Previous one was not covering all the targets

Bug: 17548097
Bug: 18186310

(cherry picked from commit 4a9e1937c56511aef579312bf39ab345f9179230)

Change-Id: I2cd9e58893555d16cbfe291b2d1279621489d5ad
diff --git a/tests/libs/Android.mk b/tests/libs/Android.mk
index 8746ff2..175a635 100644
--- a/tests/libs/Android.mk
+++ b/tests/libs/Android.mk
@@ -17,6 +17,13 @@
 LOCAL_PATH := $(call my-dir)
 TEST_PATH := $(LOCAL_PATH)/..
 
+common_cppflags += -std=gnu++11
+common_additional_dependencies := \
+    $(LOCAL_PATH)/Android.mk \
+    $(LOCAL_PATH)/Android.build.dlext_testzip.mk \
+    $(LOCAL_PATH)/Android.build.testlib.mk \
+    $(TEST_PATH)/Android.build.mk
+
 # -----------------------------------------------------------------------------
 # Library used by dlfcn tests.
 # -----------------------------------------------------------------------------