Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to e3871f1bd6e8d8c8baa093d1307b029527603302
  - Merge "Add Pnf BBs to Service-Macro-Create flow"
  - Add Pnf BBs to Service-Macro-Create flow

    Added building blocks:
    	AssignPnfBB
    	WaitForPnfReadyBB
    	ActivatePnfBB

    Issue-ID: SO-2641
    Signed-off-by: Remigiusz Janeczek <remigiusz.janeczek@nokia.com>
    Change-Id: I6bc08e17a666a1a93d7bda1ec04aa7c181b5ec8c

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 422c2a3..e3871f1 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 422c2a3615ca059b2b9e79304738106fb845bf69
+Subproject commit e3871f1bd6e8d8c8baa093d1307b029527603302