[PATCH v2 2/2] common/mlx5: move Meson config initialization and check

[Matan Azrad]

> The variable mlx5_config may be used by other mlx5 drivers and should be
> always initialized.
> By moving its initialization (with configuration file generation), it is made
> consistent for Linux and Windows builds.
> 
> And the check of mlx5_config in net/mlx5 is moved at the top of
> net/mlx5/hws/meson.build so HWS requirements are in the right context.
> 
> Signed-off-by: Thomas Monjalon <thomas at monjalon.net>
> Tested-by: Andrew Rybchenko <andrew.rybchenko at oktetlabs.ru>
Acked-by: Matan Azrad <matan at nvidia.com>