Update git submodules

Update git submodules

* Update docs/submodules/music.git from branch 'master'
  to 48b02dfdc78a6412d568a14b015ccb9439a1dbb5
  - Update locking to use Threadsafe set

    Had to create whole new method for Atomic Lock Creation.
    Added thread safe set to contol lock creation per key.
    Updated the deadlock to use local_quorum
    Removed some uneeded import
    Updated some logging.

    Issue-ID: MUSIC-512
    Signed-off-by: Thomas Nelson (arthurdent3) <nelson24@att.com>
    Change-Id: I7e1a4c34de5dc9a0e90adf30d1f4d1bac698ceae
    Signed-off-by: Thomas Nelson (arthurdent3) <nelson24@att.com>