This commit fixes up the get_config method to match the minimum method
signature as defined by the base class. Without this patch, the
get_config method calls will fail in some cirumstances.
* Mellanox OS name change: MLNXOS changed to ONYX
Signed-off-by: Samer Deeb <samerd@mellanox.com>
* Fix alphabetical order of modules metadata
Signed-off-by: Samer Deeb <samerd@mellanox.com>