[vector] Fix jmh comparison tests that can not reflect real performance

[Qi Feng]

Hi all,

Please help me review this patch:

http://cr.openjdk.java.net/~yzhang/vectorapi/vectorapi.jmh.and/webrev.00/

The initial value of accumulator is false. Using 'and' onto a false value makes the whole loop being optimized away. Changing the initial value to true can resolve this problem.

Also, the year in copyright notice is updated.

Thanks,
Qi