[llvm-branch-commits] [BOLT][NFC] Unify perf data setting (PR #199322)

[Amir Ayupov via llvm-branch-commits]

https://github.com/aaupov created https://github.com/llvm/llvm-project/pull/199322

Combine opts::PerfData handling into one place per driver (llvm-bolt and
heatmap).
* Allow using perf data directly after DataAggregator/DataReader
  unification in #195986.
* Drop redundant perf data checks in perf2boltMode done by setProfile.

Test Plan: NFC