Update git submodules

* Update docs/submodules/music.git from branch 'master'
  to 659ae9e6f0524db897bec03a81421277353946e7
  - El Alto Early Drop Version
    
    Change-Id: Ibe756c7e7236599bfcf62b73f06046ff6ffc57e4
    Issue-ID: MUSIC-482
    Signed-off-by: Tschaen, Brendan <ctschaen@att.com>
    
diff --git a/docs/submodules/music.git b/docs/submodules/music.git
index e1fcfc8..659ae9e 160000
--- a/docs/submodules/music.git
+++ b/docs/submodules/music.git
@@ -1 +1 @@
-Subproject commit e1fcfc8c861f15f281b63a65210893b6db16e543
+Subproject commit 659ae9e6f0524db897bec03a81421277353946e7