This patch adds support to query the counter that counts the
RoCE packets with corrupted ICRC (Invariant Cyclic Redundancy Code).

This counter will be under
/sys/class/infiniband/<mlx5-dev>/ports/<port>/hw_counters/

rx_icrc_encapsulated - The number of RoCE packets with ICRC
error.
Signed-off-by: NTalat Batheesh <talatb@mellanox.com>
Reviewed-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>