Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to a849c237fe71f7dee316dd87f5d385cf4e2a38b6
  - Heatbridge bugfix make use of regionId instead of cloudSiteId
    
    Issue-ID: SO-2497
    Signed-off-by: Munir Ahmad <munir.ahmad@bell.ca>
    Change-Id: Ic3b3fc98c6978807e198a4530974d940a7da5ff8
    
1 file changed