net/mlx5: fix VLAN push/pop and decap actions with mirror

net/mlx5: fix VLAN push/pop and decap actions with mirror

Due to hardware limitations the VLAN push/pop and decap actions following
the sample action are supported in the FDB Tx steering domain only, the
flows with incorrect action order for other domains are rejected by
rdma-core.

To provide the action order requested in flow API this patch checks for
the VLAN or decap precedence to the sample action and moves the VLAN or
decap actions into the next flow in the new table and adds the jump
action in the prefix sample flow.

This patch also adds the validation for these combination actions.

Fixes: 255b8f86eb6e ("net/mlx5: fix E-Switch egress mirror flow validation")
Cc: stable@dpdk.org
Signed-off-by: Jiawei Wang <jiaweiw@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>