[Backport] Added translation for comment tag

[yogeshsuhagiya]

Original Pull Request

magento#21175

Description (*)

Added translation for <comment> tag and also added translation key.
Goto: STORES > Configuration > SALES > Sales > Minimum Advertised Price > Enable MAP

Fixed Issues (if relevant)

1. N/A

Manual testing scenarios (*)

1. N/A

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)