net/mlx5: Add missing SET_DRIVER_VERSION command translation

When translating command opcodes to a string, SET_DRIVER_VERSION
command was missing.

Fixes: 42ca502e ('net/mlx5_core: Use a macro in mlx5_command_str()')
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>