For portabiliy reasons it is better to have all wrapped in clib code.
I.e. instead of using getcpu() we have clib_get_current_numa_node () and
clib_get_current_cpu_id().
Type: refactor
Change-Id: I29b52d7f29bc7f93873402c4070561f564b71c63
Signed-off-by: Damjan Marion <damarion@cisco.com>