examples/l3fwd: fix build with exact-match enabled
examples/l3fwd: fix build with exact-match enabled

L3fwd was trying to use an inexistent function "simple_ipv6_fwd_4pkts",
instead it should be "simple_ipv6_fwd_8pkts", and "simple_ipv8_fwd_4pkts"
instead of "simple_ipv4_fwd_8pkts".

clang reports some unused functions, used only for LPM lookup:
examples/l3fwd/main.c:545:1: error: unused function 'send_packetsx4'
examples/l3fwd/main.c:1165:1: error: unused function 'rfc1812_process'

Fixes: 80fcb4d4 ("examples/l3fwd: increase lookup burst size to 8")

Signed-off-by: Pablo de Lara <28355d9cfe41bb8148aea0fb24f47aae8f4217a1@intel.com>
Acked-by: Sergio Gonzalez Monroy <efb28dd1236fe58fb57f933212eddfe89b9da704@intel.com>
[Thomas: more #if to fix clang warnings]
Signed-off-by: Thomas Monjalon <ee2fa8b2681c737f775687e475dcbf2028a412f1@6wind.com>

venkynv/dpdk-mirror,mixja/dpdk,msune/dpdk,msune/dpdk,tsphillips/dpdk-fork,venkynv/dpdk-mirror,mixja/dpdk,venkynv/dpdk-mirror,venkynv/dpdk-mirror,john-mcnamara-intel/dpdk,mixja/dpdk,tsphillips/dpdk-fork,tsphillips/dpdk-fork,msune/dpdk,mixja/dpdk,msune/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,tsphillips/dpdk-fork,john-mcnamara-intel/dpdk