Update the activation test compare check to include NaN case

Author: KaustubhIMG

onnxruntime/test/mlas/unittest/test_activation.cpp

@@ -247,7 +247,8 @@ class MlasActivationTest : public MlasTestBase {
       for (unsigned i = 0; i < _countof(TestData); i++) {
         // Sensitive to comparing positive/negative zero and NaNs.
         float error = std::min(std::fabs((Buffer[i].f - TestData[i][kind].f) / TestData[i][kind].f), std::fabs(Buffer[i].f - TestData[i][kind].f));
-        EXPECT_TRUE(Buffer[i].u == TestData[i][kind].u || Buffer[i].f == TestData[i][kind].f || error < 0.000001f)
+        EXPECT_TRUE(Buffer[i].u == TestData[i][kind].u || Buffer[i].f == TestData[i][kind].f || error < 0.000001f ||
+                    (std::isnan(TestData[i][kind].f) && std::isnan(error)))
             << ", Scalar Activation Kind:" << (int)kind << ", i=" << i << ", value:"
             << std::setw(8) << std::setfill('0') << std::hex << Buffer[i].u << ", expecting:"
             << std::setw(8) << std::setfill('0') << std::hex << TestData[i][kind].u;