Fix gtest build and execution

Change-Id: I495f6e32873e7ea5ffde25490678b571312e34cd
diff --git a/build/Android.gtest.mk b/build/Android.gtest.mk
index 92443be..73dddf0 100644
--- a/build/Android.gtest.mk
+++ b/build/Android.gtest.mk
@@ -35,7 +35,7 @@
   endif
 
   LOCAL_CPP_EXTENSION := $(ART_CPP_EXTENSION)
-  LOCAL_MODULE := $(notdir $(basename $$(art_gtest_filename)))
+  LOCAL_MODULE := $$(notdir $$(basename $$(art_gtest_filename)))
   LOCAL_MODULE_TAGS := tests
   LOCAL_SRC_FILES := $$(art_gtest_filename)
   LOCAL_C_INCLUDES += $(ART_C_INCLUDES)