mlxsw: Move "used_kvd_sizes" check to mlxsw_pci_config_profile

The check should be done directly in mlxsw_pci_config_profile, as for
other profile items. Also, be consistent in naming with the rest and
rename to "used_kvd_sizes".

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>