Use native fmin/fmax in aarch64 (#47814)
* Use native fmin in aarch64
* Small cleanup + effects
* Cleanup
* Update base/math.jl
Co-authored-by: Valentin Churavy <vchuravy@users.noreply.github.com>
* Some more cleanup
Co-authored-by: Valentin Churavy <vchuravy@users.noreply.github.com>
