[TLI][AArch64] Add extra SLEEF mappings and tests (#78140)

This patch is adding more scalar to vector mappings to the TLI
for the SLEEF vector library.
The added mappings are for the following functions:

 acosh, asinh, cbrt, copysign, cospi
 erf, erfc, expm1, fdim, fma, fmax, fmin
 hypot, ilogb, ldexp, log1p, nextafter, sinpi.

It also brings back accidentally removed tests for sincospi.