Add @SmallTest for continuous tests.

The target unit test is introduced by
I01f5fafbbcfe3e3f5313829162ec011eaf2ad991 but it lacks @SmallTest
annotation which is necessary for continuous unit tests.

Bug: 22285167
Change-Id: I75235f26fe7a3baffbc60222bd9485ade85e13e8
1 file changed