Use core-tests-support instead of core-tests

The core-tests-support library is newly created. It doesn't have any
tests itself but some support for tests that need to use mocked classes
for testing. In this case, some tests are using TestKeyStore for SSL
testing in frameworks tests.

(cherry picked from commit c2d6728350f3ec80f9b4c8967794558e42516987)

Bug: 10092469
Change-Id: Ib38364c607de5a98eb242050eaaf52b22ab8ca57
1 file changed