[ARM][Compiler-rt] Fix AEABI builtins to correctly pass arguments to non-AEABI...

[ARM][Compiler-rt] Fix AEABI builtins to correctly pass arguments to non-AEABI functions on HF targets

Summary:
This is a patch for PR34167.

On HF targets functions like `__{eq,lt,le,ge,gt}df2` and `__{eq,lt,le,ge,gt}sf2` expect their arguments to be passed in d/s registers, while some of the AEABI builtins pass them in r registers.

Reviewers: compnerd, peter.smith, asl

Reviewed By: peter.smith, asl

Subscribers: peter.smith, aemerson, dberris, javed.absar, llvm-commits, asl, kristof.beyls

Differential Revision: https://reviews.llvm.org/D36675

llvm-svn: 311555