Import additional AES-GCM test vector from upstream. Upstream added another test vector in 4e049c52599d4a3fd918ba8570f49d88159e551b. Change-Id: I17855dd479214657f0698b78f93e183cd6cb912e Reviewed-on: https://boringssl-review.googlesource.com/3880 Reviewed-by: Adam Langley <agl@google.com>