msm: msm_bus: Suspected fix for deadlock

mutex is not released while checking for
null pdata which can lead to possible deadlock
condition.

Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
ASoC: msm: qdsp6v2: add path to support external EC reference

Addition of a routing path to connect VOICE2
uplink with MI2S Tx port. This change is required if
external EC is to be used.

Signed-off-by: Aravind Kumar <akumark@codeaurora.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>