memzone: check NUMA id when reserving a zone

If the socket_id is invalid (e.g. -2, -3), the
memzone_reserve_aligned_thread_unsafe should return the
EINVAL and not ENOMEM. To avoid it, we should check the
socket_id before calling malloc_heap_alloc.

Signed-off-by: Tonghao Zhang <nic@opencloud.tech>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>