IMP will not handle and command queue message any more when it is
in core/global, driver should not send command queue message to
IMP until reinitialize the NIC HW.

This patch checks the status and avoid the message sent to IMP when
reset.
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>