ASoC: msm-routing: Add lock in lsm_app_type_cfg_control callbacks

Add routing_lock mutex to protect global variables in _get() & _put()
callback of Listen App Type Config mixer control.

Change-Id: I6857a6e72dcb7f21633919b716910577af4906d2
Signed-off-by: Ajit Pandey <ajitp@codeaurora.org>