ASoC: msm: qdsp6v2: post ENETRESET error during SSR

If drain is unblocked during SSR, ENETRESET should be returned.
But ENETRESET is overwritten with EINTR. Return ENETRESET error
instead of EINTR if return value is ENETRESET.

CRs-Fixed: 766541
Change-Id: I9105a0f61e945ff3629bc7de60a356251a219733
Signed-off-by: Dhanalakshmi Siddani <dsiddani@codeaurora.org>