msm: camera: Cleanup all the command queues upon close node

When the backend camera daemon is crashed for some reason,
camera application waits for the completion of the command
processing till the timeout is reached which is unnecessary.

Hence clean all the command queues when the config node is
closed and immediately wake up all the command queues so
that camera application is notified immediately.

Change-Id: Iff5c331e8c5bb39305087fd4defe332690653b10
Signed-off-by: Lakshmi Narayana Kalavala <lkalaval@codeaurora.org>