Update git submodules

Update git submodules

* Update docs/submodules/auto from branch 'master'
  - Merge "new version of Auto release notes for Gambia MS6"
  - new version of Auto release notes for Gambia MS6

    JIRA: AUTO-53

    Updates, new content since last edit (R6.2, end of June 2018).
    Includes a dynamic link to JIRA tickets with filters for Version and Status
    (and still a static manual selection of significant tickets in a table).

    Change-Id: Ib7883df491958a4e3945c3433ffc1dee4ab8b102
    Signed-off-by: Gerard Damm <gerard.damm@wipro.com>