[llvm] [X86][NFC] Use `auto &` to avoid copy (PR #134532)

[Simon Pilgrim via llvm-commits]

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@@ -631,7 +631,7 @@ std::vector<std::pair<uint64_t, uint64_t>>
 X86MCInstrAnalysis::findPltEntries(uint64_t PltSectionVA,
                                    ArrayRef<uint8_t> PltContents,
                                    const MCSubtargetInfo &STI) const {
-  const auto TargetTriple = STI.getTargetTriple();
+  const auto &TargetTriple = STI.getTargetTriple();
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RKSimon wrote:

(style) avoid auto `const Triple &`

https://github.com/llvm/llvm-project/pull/134532