Explictly disable few features in l2fwd

This is for running l2fwd on Fusion vmxnet3 pmd
Add --no-huge support

- add a kernel module for help allocate memsegs
- adapt eal logic for --no-huge memsegs allocation
before running l2fwd:
insmod ./rte_nh_mm.ko
echo 1024 > /sys/kernel/mm/nh-mm/memsize-mB/memsize