ASoC: wcd_cpe_services: Process detection events in SEND state

when event is generated during CMI SEND state, process the
event explicitly without waiting for response to complete.
This change fixes response timed out errors for start and
stop commands.

Change-Id: I2e8d877b57c4d547688fdd7a2e71d06dfec3d4ab
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>