gitignore: add test/l2fwd/l2fwd
gitignore: add test/l2fwd/l2fwd

Signed-off-by: Anders Roxell <b4e8e89057bc64bc4f9625a4a821c9ac177a7ed2@linaro.org>

rsalveti/odp,nmorey/odp,mike-holmes-linaro/odp,ravineet-singh/odp,dkrot/odp,ravineet-singh/odp,mike-holmes-linaro/odp,erachmi/odp,ravineet-singh/odp,nmorey/odp,dkrot/odp,dkrot/odp,robbieking64/odp-crypto,erachmi/odp,mike-holmes-linaro/odp,nmorey/odp,kalray/odp-mppa,robbieking64/odp-crypto,kalray/odp-mppa,rsalveti/odp,rsalveti/odp,robbieking64/odp-crypto,kalray/odp-mppa,kalray/odp-mppa,ravineet-singh/odp,erachmi/odp,rsalveti/odp,erachmi/odp,kalray/odp-mppa,kalray/odp-mppa,robbieking64/odp-crypto,nmorey/odp,mike-holmes-linaro/odp,dkrot/odp,rsalveti/odp,kalray/odp-mppa