kunit: alpha: transition: fix build breakage in example and boilerplate

Commit 53393b9ba8cf ("kunit: alpha: transition: make kunit_test_suites()
take pointers") made kunit_test_suites() work more like how upstream
behaves.

But it did not include a change to update the example test and the
boilerplate generation (kunit.py new) to add "&".
Fix that.

Tested the example test as well this time and it works:
> ==============================
> [PASSED] example:example_simple_test
> [PASSED] example:example_mock_test
> ==============================

Fixes: 53393b9ba8cf ("kunit: alpha: transition: make kunit_test_suites() take pointers")
Change-Id: I0c882c00f7d263aa9e186971c9c577544c1668f5
2 files changed