Update git submodules

* Update docs/submodules/dmaap/dbcapi.git from branch 'master'
  to bf91de122a24dbfc9a0158556e290df21472240b
  - AafService - interface was introduced
    
    Change-Id: I1942d4ebe7c5c776df5e369f1f422f2e15d6ee99
    Issue-ID: DMAAP-1211
    Signed-off-by: piotr.karas <piotr.karas@nokia.com>
    
diff --git a/docs/submodules/dmaap/dbcapi.git b/docs/submodules/dmaap/dbcapi.git
index 675ec9e..bf91de1 160000
--- a/docs/submodules/dmaap/dbcapi.git
+++ b/docs/submodules/dmaap/dbcapi.git
@@ -1 +1 @@
-Subproject commit 675ec9e58d26fe0e73ba91004f77729c417364fd
+Subproject commit bf91de122a24dbfc9a0158556e290df21472240b