Increase MAX_QUEUES from 256 to 512.
In vhost example, MAX_QUEUES macro should be the maximum possible queue number of the port.
Theoretically we should only set up the queues that are used, i.e., first rx queue of each pool, or
at most queues from 0 to MAX_QUEUES. Before we revise the implementation and are certain all NICs support
this well, add a remind message to user.
Signed-off-by: Huawei Xie <huawei.xie@intel.com>
8bd6c395a5