Update git submodules

Update git submodules

* Update docs/submodules/portal.git from branch 'master'
  to d86f64c663b7b82f529617b6c8c0ea69a926f950
  - Merge "XSS Vulnerability fix in MicroserviceController"
  - XSS Vulnerability fix in MicroserviceController

    @SafeHtml annotation is used to fix this problem.

    This commit also fix:
    * redundant local variable issue
    * sonar issue: Replace the type specification in this constructor call with
    the diamond operator ("<>").
    * performance issue - String concatenation argument as argument
    to 'StringBuilder.append()' call
    * redundant cast
    * redundant 'throws Exception'. 'Exception' is never thrown
    * access static member via instance reference
    * unused declarations

    Issue-ID: PORTAL-602
    Change-Id: Id92fe2d9cfe239474403f611f3d5d0170acf63cc
    Signed-off-by: Dominik Mizyn <d.mizyn@samsung.com>