Update git submodules
Update git submodules

* Update plugins/codemirror-editor from branch 'master'
  to 53dccff17c029459999ff70ac886b80626af634b
  - fix path to codemirror-assets.html
    
    Bug: Issue 9060
    Change-Id: I7c3604ace0e013de8b5ef3e018299f6755e3dcf4
    
WANdisco/gerrit,qtproject/qtqa-gerrit,WANdisco/gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,WANdisco/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit,qtproject/qtqa-gerrit,WANdisco/gerrit,qtproject/qtqa-gerrit,qtproject/qtqa-gerrit