malloc: add NUMA-aware realloc function

malloc: add NUMA-aware realloc function

Currently, rte_realloc will not respect original allocation's
NUMA node when memory cannot be resized, and there is no
NUMA-aware equivalent of rte_realloc. This patch adds such a function.

The new API will ensure that reallocated memory stays on
requested NUMA node, as well as allow moving allocated memory
to a different NUMA node.

Signed-off-by: Tomasz Jozwiak <tomaszx.jozwiak@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>