[MLIR] Apply clang-tidy fixes for misc-use-internal-linkage in mlir-linalg-ods-yaml-gen.cpp (NFC)

Author: joker-eph

mlir/tools/mlir-linalg-ods-gen/mlir-linalg-ods-yaml-gen.cpp

@@ -449,7 +449,7 @@ static bool isAttribute(LinalgOperandDefKind kind) {
 }
 
 // Get the enum name for the given operand kind.
-std::string convertOperandKindToEnumName(LinalgOperandDefKind kind) {
+static std::string convertOperandKindToEnumName(LinalgOperandDefKind kind) {
   switch (kind) {
   case LinalgOperandDefKind::UnaryFnAttr:
     return std::string("UnaryFn");
@@ -466,7 +466,7 @@ std::string convertOperandKindToEnumName(LinalgOperandDefKind kind) {
 }
 
 // Get the enum name for the given function kind.
-std::string convertFunctionKindToEnumName(ScalarFnKind kind) {
+static std::string convertFunctionKindToEnumName(ScalarFnKind kind) {
   switch (kind) {
   case ScalarFnKind::Unary:
     return std::string("UnaryFn");