Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to c1a2f4b9a33f6b2bec77dbfbc6b43663ad9cca1f
  - Merge "Remove MsoLogger from MSOCommonBPMN scripts"
  - Remove MsoLogger from MSOCommonBPMN scripts

    Modifications of groovy scripts in MSOCommonBPMN removing following:
    Replaced MsoLogger with plain slf4j.
    Refactored loging output.
    Fixed imports.
    Replaced utils.log() with respective logger calls (except for
    AbstractServiceTaskProcessor class).
    Modifications to MsoUtils class.

    Change-Id: I6bdd8ab6f60dca9b765fcf7d56f5aaa707c028cc
    Issue-ID: LOG-631
    Signed-off-by: Witold Ficio Kopel <w.kopel@samsung.com>