[llvm] [llvm-symbolizer] Recognize AIX big archive (PR #150401)

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midhuncodes7 wrote:

Renamed the yaml files. 
The yaml files were created using `obj2yaml` tool. Modifications to the yaml makes it not recognisable by the `yaml2obj` tool. 
Initially a minimal yaml inlined with the test was created however the `yaml2obj` tool did not work on such files

https://github.com/llvm/llvm-project/pull/150401