[8u] RFR 8273341: Update Siphash to version 1.0

[Zhengyu Gu]

Hi Andrew,

>> Thanks,
>>
>> -Zhengyu
>>
> 
> Looks fine.
> 
> The main change causing the copyright difference seems to be
> JDK-8164738: "Convert AltHashing_test to GTest", which doesn't
> make sense for 8u.
> 
> I would, however, hold off on approval for 8u until this is
> in 11u & 17u. It still seems to be in process there at the
> present time.

This patch has been integrated in 17u and 11u. Could you please approve 
the patch for 8u?

Thanks,

-Zhengyu

> 
> Thanks,