[llvm] [BOLT] Fix LSDA section handling (PR #71821)

[Vladislav Khmelevsky via llvm-commits]

yota9 wrote:

@rafaelauler Thanks! But that is why I've checked that the initial binary has this section, if this behaviour would be changed in clang somebody would have to fix it before submitting this :) From time to time we have the tests that rely on the compiler behaviour, maybe more than needed.. But I don't see a reason not to add the string to the link script, so I would do it. Thanks again!

https://github.com/llvm/llvm-project/pull/71821