msm: ipa: Wait for the polling to complete before resetting the channel

Wait for the polling mode to be finished before cleaning any channel
irrespective of napi and non-napi objects to avoid race condition.


Change-Id: I2733a93dc555fed7465c09c07532a2a2e08eb96b
Acked-by: Suhas Mallesh <smallesh@qti.qualcomm.com>
Signed-off-by: Michael Adisumarta <madisuma@codeaurora.org>