libdma: adapting the poll function of the client device to dispatch the waitset of the channel. 
libdma: adapting the poll function of the client device to dispatch the
waitset of the channel. 
utsav2601/cmpe295A,utsav2601/cmpe295A,kishoredbn/barrelfish,8l/barrelfish,BarrelfishOS/barrelfish,kishoredbn/barrelfish,BarrelfishOS/barrelfish,8l/barrelfish,8l/barrelfish,8l/barrelfish,BarrelfishOS/barrelfish,kishoredbn/barrelfish,utsav2601/cmpe295A,utsav2601/cmpe295A,BarrelfishOS/barrelfish,BarrelfishOS/barrelfish,8l/barrelfish,BarrelfishOS/barrelfish,8l/barrelfish,BarrelfishOS/barrelfish,kishoredbn/barrelfish,BarrelfishOS/barrelfish,BarrelfishOS/barrelfish,utsav2601/cmpe295A,kishoredbn/barrelfish,kishoredbn/barrelfish,utsav2601/cmpe295A