lpm6: set errno on creation error
lpm6: set errno on creation error

Signed-off-by: Igor Ryzhov <b03ec72ab44ca5800dd91e71c433a63ed86c5f25@nfware.com>
Acked-by: Bruce Richardson <66b9e8e8fbd5e9f41f91b0af050876182ce9d0e4@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk