[llvm] [BOLT][merge-fdata]Fix support for fdata files starting with no_lbr on ARM platform (PR #112328)

[Amir Ayupov via llvm-commits]

aaupov wrote:

> @zrxxzz , @aaupov: given that #118481 will be merged soon, would it be OK if I close this one?

I don't mind. Thanks @zrxxzz for the initial implementation.

https://github.com/llvm/llvm-project/pull/112328