Link tsan shared library when tsan is used.

Bug: http://b/25392375
Test: build a unit test with tsan.
Change-Id: Ib2d937f2e311f6670cf341a983740f0ca464f166
diff --git a/core/config_sanitizers.mk b/core/config_sanitizers.mk
index e01fbbf..f5b45db 100644
--- a/core/config_sanitizers.mk
+++ b/core/config_sanitizers.mk
@@ -137,6 +137,8 @@
     else
         $(error $(LOCAL_PATH): $(LOCAL_MODULE): TSAN cannot be used for 32-bit modules.)
     endif
+  else
+    my_shared_libraries += $(TSAN_RUNTIME_LIBRARY)
   endif
 endif