Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to e2b0c39795a90aa7ac2abbc46b4f33793a9b8bd5
  - Merge "issue encoding openstack errors"
  - issue encoding openstack errors

    Fix setting of port to fix unit test issues
    Fix formatting error on the file causing build issue
    Properly revert change that was made previously
    Fix issue where base java library not encoding properly

    Change-Id: I2bfa46825d9a99998195dbd7bd422f88fa76ef09
    Issue-ID: SO-1965
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@us.att.com>