net/mlx5_core: Clean driver version and name

[ Upstream commit 17a7612b ]

Remove exposed driver version as it was done in other drivers,
so module version will work correctly by displaying the kernel
version for which it is compiled.

And move mlx5_core module name to general include, so auxiliary drivers
will be able to use it as a basis for a name in their device ID tables.

Reviewed-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Stable-dep-of: 1b2bd0c0 ("net/mlx5e: Check return value of snprintf writing to fw_version buffer for representors")
Signed-off-by: Sasha Levin <sashal@kernel.org>