Update git submodules

* Update docs/submodules/dmaap/dbcapi.git from branch 'master'
  to a2a6ac2713087669effbad9abf00f60eabaa7b82
  - Merge "Added test cases TopicTest.java"
  - Added test cases TopicTest.java
    
    Added test cases TopicTest.java
    
    Issue-ID: DMAAP-1128
    Change-Id: Ibf0bf50f1cc8affec4c06009c1e1c14e66682d09
    Signed-off-by: Sudarshan Kumar <sudars19@in.ibm.com>
    
1 file changed