Merge pull request #198 from NVIDIA/fix_int8_test

fix(//tests/accuracy): Fix int8 accuracy test for new PTQ api

Author: narendasan

tests/accuracy/test_int8_accuracy.cpp

@@ -1,6 +1,7 @@
 #include "accuracy_test.h"
 #include "datasets/cifar10.h"
 #include "torch/torch.h"
+#include "trtorch/ptq.h"
 
 TEST_P(AccuracyTests, FP16AccuracyIsClose) {
     auto calibration_dataset = datasets::CIFAR10("tests/accuracy/datasets/data/cifar-10-batches-bin/", datasets::CIFAR10::Mode::kTest)