[llvm] [BOLT] Add reading support for Linux kernel exception table (PR #83100)

[Davide Italiano via llvm-commits]

https://github.com/dcci commented:

LGTM. I'd appreciate another pair of eyes in case I'm missing something @rafaelauler / @aaupov @ayermolo 

https://github.com/llvm/llvm-project/pull/83100