Update git submodules

Update git submodules

* Update docs/submodules/portal.git from branch 'master'
  to 1e40aa095a0999802fb59cd4ebaac6db42a21737
  - Merge changes Ia6e96c72,If0cf112c,I3060de8b,I58fe7429

    * changes:
      Migrate Dockerfile.widgetms to unprivileged user
      Migrate Dockerfile.sdk to unprivileged user
      Migrate Dockerfile.portal to unprivileged user
      Migrate Dockerfile.be to unprivileged user

  - Migrate Dockerfile.widgetms to unprivileged user

    Issue-ID: PORTAL-849
    Change-Id: Ia6e96c72a0a7f4a7d7693688365c683227bef6d3
    Signed-off-by: Pawel Wieczorek <p.wieczorek2@samsung.com>
  - Migrate Dockerfile.sdk to unprivileged user

    Issue-ID: PORTAL-849
    Change-Id: If0cf112cd627c431e4ca08329e0da3ee5d8b8bdc
    Signed-off-by: Pawel Wieczorek <p.wieczorek2@samsung.com>
  - Migrate Dockerfile.portal to unprivileged user

    Issue-ID: PORTAL-849
    Change-Id: I3060de8beddcba03be45f19ce8cd1fd0e32e62f5
    Signed-off-by: Pawel Wieczorek <p.wieczorek2@samsung.com>
  - Migrate Dockerfile.be to unprivileged user

    Issue-ID: PORTAL-849
    Change-Id: I58fe742980a24039114033a82fe785a1093391bf
    Signed-off-by: Pawel Wieczorek <p.wieczorek2@samsung.com>