net/mlx5: extend skip scale flag

net/mlx5: extend skip scale flag

The sampling feature introduces the scale flow group with factor,
then the scaled table value can be used for the normal path table
due to this table be created implicitly.

But if the input group value already be scaled, for example the
group value of sampling suffix flow, then use 'skip_scale" flag
to skip the scale twice in the translation action.

Consider the flow with jump action and this jump action could be
created implicitly, PMD may only scale the original flow group
value or scale the jump group value or both, so extend the
'skip_scale' flag to two bits:
If bit0 of 'skip_scale' flag is set to 1, then skip the scale the
original flow group;
If bit1 of 'skip_scale' flag is set to 1, then skip the scale the
jump flow group.

Signed-off-by: Jiawei Wang <jiaweiw@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>