[onert] Add override to setMinMaxRecordsThreshold (#14499)

This commit add override keyword to Quantizer::setMinMaxRecordsThreshold.
It will fix build fail on clang.

ONE-DCO-1.0-Signed-off-by: Hyeongseok Oh <hseok82.oh@samsung.com>

runtime/onert/odc/Quantizer.h

@@ -35,7 +35,7 @@ class Quantizer : public IQuantizer
   /**
    * @brief Set the number of minmax records enough for quantization
    */
-  void setMinMaxRecordsThreshold(uint32_t value) { _minmax_threshold = value; };
+  void setMinMaxRecordsThreshold(uint32_t value) override { _minmax_threshold = value; };
 
   /**
    * @brief Checking the number of minmax records enough for quantization (comparison with