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: Id17ee80fce83bdbc6a7371de2aaf3c92fe587caa
Signed-off-by: Sivasri Kumar Vanka <sivasri@codeaurora.org>