net/mlx5: fs, add match on ranges API

net/mlx5: fs, add match on ranges API

Range is a new flow destination type which allows matching on
a range of values instead of matching on a specific value.

Range flow destination has the following fields:
 - hit_ft: flow table to forward the traffic in case of hit
 - miss_ft: flow table to forward the traffic in case of miss
 - field: which packet characteristic to match on
 - min: minimal value for the selected field
 - max: maximal value for the selected field

Note:
 - In order to match, the value in the packet should meet
   the following criteria: min <= value < max
 - Currently, the only supported field type is L2 packet length

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>