Update git submodules

* Update docs/submodules/music.git from branch 'master'
  to e826554678ac9214dc23724c2988dfb9a61af3ea
  - junit Testcase for MusicContainerFilter
    
    Issue-ID: MUSIC-583
    Change-Id: If1a428f89dd8b1f1687173c7fd8cb563d2daad84
    Signed-off-by: ezhil <ezhrajam@in.ibm.com>
    
1 file changed