android.core.tests.libcore.package.tests: add mockito to the dependencies

(cherry picked from commit dfcce76cbce57a6c400fc6e2c16d7347e5e18a4c)

Bug: 27991177
Bug: 29411540
Change-Id: I4404621d0e382bd3c0b65c3e461a434f519ca5e9
1 file changed