net/mlx5: fix ICMPv6 header rewrite actions

net/mlx5: fix ICMPv6 header rewrite actions

The ConnectX-5 HW cannot calculate the checksum for ICMPv6,
therefore flows with pattern 'ipv6 proto is 58' with actions that change
the header should be rejected. the actions that change the header
in this type of flow are 'set_ipv6_src' and 'set_ipv6_dst'.

Fixes: 4bb14c83df95 ("net/mlx5: support modify header using Direct Verbs")
Cc: stable@dpdk.org
Signed-off-by: Shiri Kuzin <shirik@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>