linux-imx

hv_netvsc: use napi_schedule_irqoff

Since the netvsc_channel_cb is already called in interrupt
context from vmbus, there is no need to do irqsave/restore.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>