New math test failures on Fedora/33

[Wilco Dijkstra]

Hi,

> These are all ULPs failures also and we need to fix them for the release.
>
> This will all be done when we reset the ULPs.

On the subject of ULPs, how about centralizing the ULP files into a single
generic file and only adding entries to target ULP files for special cases?
More of the math functions are becoming generic and so the ULPs should be
the same for most (some entries might need fma and non-fma variants of course).
Then you only need the target versions for special cases like non-standard IEEE
formats, target specific implementations with different ULPs etc.

And if there aren't that many special cases you could use a single file with
a syntax like:

Function: "acos":
float: 1            // generic case
float-alpha: 2

Cheers,
Wilco