Added #ifdef INTEL_MKL to the Quantized Concat test

tensorflow/core/kernels/mkl_quantized_concat_op_test.cc

@@ -13,6 +13,8 @@ See the License for the specific language governing permissions and
 limitations under the License.
 ==============================================================================*/
 
+#if defined(INTEL_MKL) && defined(ENABLE_MKL)
+
 #define EIGEN_USE_THREADS
 
 #include <functional>
@@ -228,3 +230,5 @@ void QuantizedConcatTest::TestSecondDim8Bit(float first_min, float first_max,
 }
 
 }  // namespace tensorflow
+
+#endif  // INTEL_MKL && ENABLE_MKL