net/mlx5e: Introduce ptys2ethtool_process_link()

The functions ptys2ethtool_supported_link(), ptys2ethtool_adver_link()
share the same code, thus, in order to remove code duplication we
introduce a new function ptys2ethtool_process_link() to handle the
processing of both supported and advertised link modes.

Signed-off-by: Shahar Shitrit <shshitrit@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20250219114112.403808-4-tariqt@nvidia.com


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