test: l2fwd: add extra counter to count packet with errors vs dropped packets
test: l2fwd: add extra counter to count packet with errors vs dropped packets

Drop packets counts both packets dropped by calls to pktio_send()
and packet which were flagged with errors during parsing.

Add an extra counter to differ these two types of packets.

Signed-off-by: Nicolas Morey-Chaisemartin <7188b998d7bb37a035517aa285fa3f5a95344e80@kalray.eu>

kalray/odp-mppa,kalray/odp-mppa,kalray/odp-mppa,kalray/odp-mppa,kalray/odp-mppa,kalray/odp-mppa,kalray/odp-mppa