[lworld+fp16] RFR: 8337605: Update description of constants in Float16

[Joe Darcy]

On Thu, 1 Aug 2024 00:42:02 GMT, Joe Darcy <darcy at openjdk.org> wrote:

> Align wording or Float16 constants more closely with wording used in Float/Double, add links to corresponding Float/Double constants.

@jatin-bhateja , can you sponsor this change? Thanks.

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PR Comment: https://git.openjdk.org/valhalla/pull/1191#issuecomment-2284729834