common/mlx5: fix HCA capabilities PRM alignment
common/mlx5: fix HCA capabilities PRM alignment

0x20 reserved bytes were missed in the HCA cap PRM structure before the
newly added fields for MMO QP capabilities.
That caused reading MMO QP caps incorrectly.
Add the reserved fields in the HCA cap structure.

Fixes: cbc4c13a255e ("common/mlx5: update MMO HCA capabilities")

Signed-off-by: Raja Zidane <7478d5793e25862af1798b60d5a00ac6f0cfeb55@nvidia.com>
Acked-by: Matan Azrad <6969f5f553ad7652679a585a85d7321babc90464@nvidia.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk