Update git submodules

* Update docs/submodules/music.git from branch 'master'
  to fa56ad63a720ab32cb90142f5e690930103a82fe
  - Merge "MusicPolicyVoilationException-Junit TestCase added"
  - MusicPolicyVoilationException-Junit TestCase added

    MusicPolicyVoilationException-Junit Testcase added

    Issue-ID: MUSIC-291
    Change-Id: Ib4bb2ce2257f5fdf2293828acddf54ed9fdddb79
    Signed-off-by: Sudarshan Kumar <sudars19@in.ibm.com>

diff --git a/docs/submodules/music.git b/docs/submodules/music.git
index a627a5b..fa56ad6 160000 (submodule)
--- a/docs/submodules/music.git
+++ b/docs/submodules/music.git
@@ -1 +1 @@
-Subproject commit a627a5b2d6cd2823c079fcc842a188f3faf2bf5d
+Subproject commit fa56ad63a720ab32cb90142f5e690930103a82fe