Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 7b4653622bba6d9392c53fe406088cd22e223ca1
  - Merge "enhance openstack library"
  - enhance openstack library
    
    Add new methods to NovaClient
    
    Issue-ID: SO-2680
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I13fdfcb7052f12ece409a19fbd33abc3f101e2d9
    
1 file changed