RFR: 8328812: Update and move siphash license

[Bernd]

On Mon, 25 Mar 2024 20:07:02 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

>> src/hotspot/share/legal/siphash.md line 9:
>> 
>>> 7:    Copyright (c) 2012-2021 Jean-Philippe Aumasson
>>> 8:    <jeanphilippe.aumasson at gmail.com>
>>> 9:    Copyright (c) 2012-2014 Daniel J. Bernstein <djb at cr.yp.to>
>> 
>> Why would you remove a author or year range?
>
> To match the license claim in the code we are using:
> https://github.com/openjdk/jdk/blob/fb8f2a0a929ebe7f65c69741712b89bbb403ade9/src/hotspot/share/classfile/altHashing.cpp#L32-L43

The header file contains more claims https://github.com/veorq/SipHash/blob/master/halfsiphash.h

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PR Review Comment: https://git.openjdk.org/jdk/pull/18455#discussion_r1538174915