[PATCH 4/4] AArch64: Add vector tanpi routines

[Wilco Dijkstra]

Hi Joe,

> Vector variant of the new C23 tanpi. New tests pass on AArch64.
> ---
> OK for master? If so please commit for me as I don't have commit rights.

OK, I needed to change the ULP of tanpif to 2 due to Paul's new inputs,
but everything passes with that. Committed.

Cheers,
Wilco