This should give a good balance between optimization while still
supporting common hardware. See
https://jira.opnfv.org/browse/FUEL-193 for details.
Change-Id: Ide33d56ba1567544b61512d24e2ce5519f23d9b0
Signed-off-by: Billy O'Mahony <billy.o.mahony@intel.com>
Remove AVX2 feature usage on non-haswell processors.
Another option supposes to bring in cpu dispatcher in code.
Change-Id: Id28a54fac2c1149636db368c03b2e84f4ed4323a