[llvm-branch-commits] [BOLT] Use offset deduplication for cold fragments (PR #87853)

[Amir Ayupov via llvm-branch-commits]

https://github.com/aaupov created https://github.com/llvm/llvm-project/pull/87853

Apply deduplication for uniformity and BAT section size reduction.

Changes BAT section size to:
- large binary: 39541552 bytes (1.02x original),
- medium binary: 3828996 bytes (0.64x),
- small binary: 928 bytes (0.65x).

Test Plan: Updated bolt-address-translation{,-yaml}.test