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/Android.mk b/tests/Android.mk
index f20eb7d..8b0b0a0 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -28,6 +28,8 @@
 build_host := false
 endif
 
+common_additional_dependencies := $(LOCAL_PATH)/Android.mk $(LOCAL_PATH)/Android.build.mk
+
 # -----------------------------------------------------------------------------
 # All standard tests.
 # -----------------------------------------------------------------------------