ASoC: msm: fix indefinite wait in compress drain

In compressed driver streams might get stopped while
ioctl drain is started but not completed, since buffers
are drained in multiple stages when gapless mode is
enabled.
Check stream state before issuing wait commands to
prevent waiting for drain ack on stopped streams.

Change-Id: I606639c103a7aed90dd9a4561fa6dffc3d4c3822
Signed-off-by: Dhananjay Kumar <dhakumar@codeaurora.org>