msm: audio: qdsp6v2: Update timer function in proxy port driver

Wait event timeout present in interrupt context, which is causing
system hang. Remove wait event from timer function, add mechanism
to retry with less poll time.

CRs-Fixed: 425401
Change-Id: I4a720d687cce62ba404fe8f0c25a43892c716315
Signed-off-by: Deepa Madiregama <dmadireg@codeaurora.org>