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
    
diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 824b38d..a849c23 160000
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 824b38dceab0fe94c3d80be31e48580609620641
+Subproject commit a849c237fe71f7dee316dd87f5d385cf4e2a38b6