Allow Hervil to access to DB-A-001 for ViMbAdmin

Summary: Ref T1932

Test Plan: salt db-A-001 state.apply roles/dbserver-pgsql/server/config

Reviewers: dereckson

Reviewed By: dereckson

Maniphest Tasks: T1932

Differential Revision: https://devcentral.nasqueron.org/D3341