net/ice/base: support FDIR for GTPU QFI field

net/ice/base: support FDIR for GTPU QFI field

Add GTPU qfi field support for flow director. Note that for GTPU pkt,
only qfi field (6 bits) can be set for FD. The supported GTPU pkts are
defined as:
ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_UDP,
ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_TCP,
ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_ICMP,
ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_OTHER (FRAG and PAY belong to this)

Signed-off-by: Junfeng Guo <junfeng.guo@intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Qiming Yang <qiming.yang@intel.com>