[TLI][NFC] Autogenerate vectorized call tests for SLEEF/ArmPL.

This patch prepares the ground for llvm#76060.

* Unifies ArmPL and SLEEF tests for better coverage
* Replaces deprecated float* and double* types with ptr
* Adds noalias attribute to pointer arguments
* Adds some cmd-line options to the RUN lines to simplify output
* Removes datalayout since target triple is provided
* Removes checks for return statements
* Refactors the regex filter for autogenerated checks
* Removes redundant test file suffix (already under the AArch64 dir)

Author: labrinea