msm: sps: support polling when pipe is in IRQ mode

BAM client has a new use case where active polling is needed when
the pipe is configured in the interrupt mode. Add the support in SPS
driver for this use case.

Change-Id: I55603de946b77004a38ab1dbca995072e9066f54
Signed-off-by: Yan He <yanhe@codeaurora.org>
Signed-off-by: Neha Pandey <nehap@codeaurora.org>
3 files changed