Added mapping support from rte_flow attributes
to softnic pipeline and table.
So added flow attribute map set and get functions
definition to new file rte_eth_sofnic_flow.c.
Added pmd flow internals with ingress and egress
flow attribute maps.
Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>