[llvm] [PAC][CodeGen][ELF][AArch64] Support signed GOT with tiny code model (PR #114525)

[Daniil Kovalev via llvm-commits]

kovdan01 wrote:

Re-opened #113812 after accidentally cluttering that with wrong merge commit and auto-requesting review from a lot of reviewers as code owners.

https://github.com/llvm/llvm-project/pull/114525