asoc: pcm-noirq: set substream state to disconnect when ssr happens

When SSR happens, set substream state to SNDRV_PCM_STATE_DISCONNECTED
to avoid userspace keeping waiting for substream state and causing
deadlock.

Change-Id: Iaa4d76101204652742c55d13da5c770c418a16bc
Signed-off-by: Meng Wang <mengw@codeaurora.org>