Update git submodules

Update git submodules

* Update docs/submodules/music.git from branch 'master'
  to bdde056e3e994a6970ef182397812a3ddf56b70e
  - Conditional test cases

    Additional coverage for other tests.
    Remove unused Benchmark api

    Change-Id: Ib091f1827a226a4a50e3427b20af4c8b12c363c3
    Issue-ID: MUSIC-341
    Signed-off-by: Tschaen, Brendan <ctschaen@att.com>
  - Update MUSIC test cases.

    Fix some old test cases that were expecting incorrect output
    Refactor to REST API suite to re-use cassandra instance

    Change-Id: I9400b3e1e3ce35114e587336f0841207493c9680
    Issue-ID: MUSIC-341
    Signed-off-by: Tschaen, Brendan <ctschaen@att.com>