net/mlx5e: Use extack in set ringparams callback

In case of errors in set ringparams, reflect it through extack instead
of a dmesg print.
While at it, make the messages more human friendly and remove two
redundant checks that are already validated by the core.

Signed-off-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20240808055927.2059700-7-tariqt@nvidia.com


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