Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 3690db02a3035306d6be5fae7529a2f27b90ee71
  - Merge "JUnit tests for VfcManager"
  - JUnit tests for VfcManager
    
    Increased junit tests coverage according to Sonar analyses.
    Added missing tests for VfcManager.
    
    Change-Id: Ib0057f4f8179f088fe4e94df563a3053601758e7
    Issue-ID: SO-1692
    Signed-off-by: Robert Bogacki <r.bogacki@samsung.com>
    
1 file changed