[LayoutNG] Mark already-fixed vertical-align tests

This patch marks tests that were fixed in the 'vertical-align' patch[1]
but were missed and not updated in TestExpectations.

[1] https://codereview.chromium.org/2803433002

BUG=636993

Review-Url: https://codereview.chromium.org/2839733005
Cr-Commit-Position: refs/heads/master@{#467273}
2 files changed