msm: ipa: remove delay in out of buffer recovery procedure

When a RX pipe runs out of buffers, a delayed work is scheduled
to re-attempt the replenish process but the single threaded
workqueue will not process that work till the existing work is
retired. The existing work will be retired after sufficient
inacvitivty is detected but in this corner-case, we can do this
immediately since no further packets will be received.

Change-Id: I23ca50e195c2eeb47db0dcfb39ae5491d38372d9
Signed-off-by: Ravi Gummadidala <rgummadi@codeaurora.org>