net/ice: add flow IPv6 TC support
net/ice: add flow IPv6 TC support

When set flow ipv6 tc rule, ice_get_flow_field will set error.
This patch fixes this issue.

Fixes: d76116a4678f ("net/ice: add generic flow API")

Signed-off-by: Ying A Wang <97532f95165d435aea36c348f56ac506dcdc64bc@intel.com>
Acked-by: Qiming Yang <6f20802c8a43e38f9b475618bd31b5b1ac8c8656@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk