Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to e558a6469df40ba7c7aca8cdf81cacd703cd4b0b
  - unit tests - sdc-healthcheck-manager
    
    Additional junit tests
    
    Change-Id: I6562e5085f7bfd692db129bf1706f3f569ebd793
    Issue-ID: SDC-2326
    Signed-off-by: Tomasz Golabek <tomasz.golabek@nokia.com>
    
diff --git a/docs/submodules/sdc.git b/docs/submodules/sdc.git
index cc4713c..e558a64 160000
--- a/docs/submodules/sdc.git
+++ b/docs/submodules/sdc.git
@@ -1 +1 @@
-Subproject commit cc4713c619b5f1557862bcea5d7e766d07aafce1
+Subproject commit e558a6469df40ba7c7aca8cdf81cacd703cd4b0b