net/ice/base: enable flow director for IPv6 next protocol

net/ice/base: enable flow director for IPv6 next protocol

To support the new DDP and be compatible with the old version DDP
file, API function 'check_ddp_support_proto_id' is added to detect
if the required protocol ID is supported by the current DDP file.

Add new protocol ID IPV6_NEXT_PROTO support for PF FDIR if current
DDP is new DDP and keep behavior if it is the old version DDP.

Signed-off-by: Jie Wang <jie1x.wang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>