nfp: add NFP_FL_FEATS_QOS_METER to host features to enable meter offload

Add NFP_FL_FEATS_QOS_METER to host features to enable meter
offload in driver.

Before adding this feature, we will not offload any police action
since we will check the host features before offloading any police
action.

Signed-off-by: Baowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>