Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 526148c73d077343c083484aedb5745f7a759f0c
  - Merge "WaitForPnfReadyBB - set orchestration status to Register and then Registered"
  - WaitForPnfReadyBB - set orchestration status to Register and then Registered

    Issue-ID: SO-2644
    Signed-off-by: Lukasz Muszkieta <lukasz.muszkieta@nokia.com>
    Change-Id: I2796baf4afabd47536ffa0d4deb5096608fc5cce

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 9b496eb..526148c 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 9b496eb93f2056656f9ab182de37beb88a9f75cd
+Subproject commit 526148c73d077343c083484aedb5745f7a759f0c