RFR(XS): Corrected the number of task queues for resetting and printing task queue stats

[Aleksey Shipilev]

On 11/28/2016 11:12 PM, Zhengyu Gu wrote:
> A small fix to correct the number of the task queues when resetting and printing task queue stats.
> Now, the number of task queues is no longer correlated to the number of concurrent threads.
> 
> Webrev: http://cr.openjdk.java.net/~zgu/shenandoah/nqueues/webrev.00/

Looks good.

Thanks,
-Aleksey