[PATCH 3.16.y-ckt 018/180] xen-netfront: update num_queues to real created

3.16.7-ckt24 -stable review patch. If anyone has any objections, please let me know. ---8< From: Joe Jin commit ca88ea1247dfee094e2467a3578eaec9bdf0833a upstream. Sometimes xennet_create_queues() may failed to created all requested

[PATCH 3.16.y-ckt 018/180] xen-netfront: update num_queues to real created

3.16.7-ckt24 -stable review patch. If anyone has any objections, please let me know. ---8< From: Joe Jin commit ca88ea1247dfee094e2467a3578eaec9bdf0833a upstream. Sometimes xennet_create_queues() may failed to