net: hns3: never send command queue message to IMP when reset

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: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>