[llvm] [TableGen] [NFC] Refine TableGen code to comply with `clang-tidy` checks (PR #113318)

[Matt Arsenault via llvm-commits]

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@@ -53,12 +53,12 @@ static void CheckFeatureTree(const Record *Root) {
   }
 }
 
-static void EmitARMTargetDef(const RecordKeeper &RK, raw_ostream &OS) {
+static void emitArmTargetDef(const RecordKeeper &RK, raw_ostream &OS) {
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arsenm wrote:

Probably should keep ARM capitalized here 

https://github.com/llvm/llvm-project/pull/113318