[llvm] [BOLT][AArch64] Add indirect call promotion support (PR #184733)

[Haibo Jiang via llvm-commits]

Jianghibo wrote:

@yavtuk @maksfb Sorry for updating this branch so late. Could you please take another look when you have a chance? Thanks.
The ICP on aarch64 can bring an additional ~1% performance gain to MySQL.

https://github.com/llvm/llvm-project/pull/184733