ASoC: msm: Fix subsystem restart crash.

-Subsystem restart attempts made back to back
results in crash.
-Accessing Null pointer while subsystem restart
in progress.
-Update the afe_callback function to return
after processing the RESET_EVENTS.

Change-Id: I53f0fecd6079d1788dc7cc5a2587383da9901084
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
1 file changed