Add YAMLLint for static check

Add YAMLLint for static check

JIRA: OCTO-160

Current CI commit gate is simple, just have flake8 check in part of projects,
it's better to apply more check tools to more projects.
Yaml files could be checked by YAMLLint when the project is configed in releng.
YAMLLint does not only check for syntax validity, but for weirdnesses like key
repetition and cosmetic problems such as lines length, trailing spaces, indentation,
etc.

Change-Id: Ie90afd4a07ad10cc723f31efd35e5605f765583c
Signed-off-by: KingPoo <haojingbo@huawei.com>