Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to bb219dc0894bb60eaeb242f51b9a382228031081
  - Merge "Align AssignPnfBB with Service Macro Create 	-move and align logic of BB delegates with tests 	-remove unnecessary classes 	-add tests cases for Pnfs in ExtractPojosForBBTests"
  - Align AssignPnfBB with Service Macro Create
    	-move and align logic of BB delegates with tests
    	-remove unnecessary classes
    	-add tests cases for Pnfs in ExtractPojosForBBTests

    Issue-ID: SO-2568
    Signed-off-by: Remigiusz Janeczek <remigiusz.janeczek@nokia.com>
    Change-Id: Ic48e2c1c6ab852c33837091da3e7916b71c26466

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 9d77758..bb219dc 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 9d77758d706d13c1c2ea46ada1837d757adbf9ba
+Subproject commit bb219dc0894bb60eaeb242f51b9a382228031081