net/ice: support DCF device reset

net/ice: support DCF device reset

DCF PMD needs to support rte_eth_dev_reset, the reason is when a DCF
instance is killed, all the flow rules still exists in hardware, when
DCF gets to reconnect, it already lost the flow context, and if the
application wants to create new rules, it may fail due to firmware
reports rules already exist.

The rte_eth_dev_reset API provides a more elegant way for the
application to reset DCF when reconnect happens.

Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>