net/mlx5: DR, expand SWS STE callbacks and consolidate common structs

Expand SWS STE callbacks to support ConnectX-8 hardware.
Move common enums and structures to a shared header file.

Signed-off-by: Itamar Gozlan <igozlan@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-9-tariqt@nvidia.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>