Benchmarks: Fix bug - fix bug of third_party/cuda-samples git checkout issue when building docker (#126)

* fix bug in docker build of third_party/cuda-samples

.gitmodules

@@ -2,6 +2,3 @@
 	path = third_party/cutlass
 	url = https://github.com/NVIDIA/cutlass.git
 	branch = v2.4.0
-[submodule "third_party/cuda-samples"]
-	path = third_party/cuda-samples
-	url = https://github.com/NVIDIA/cuda-samples.git

third_party/Makefile

@@ -25,8 +25,7 @@ endif
 # The version we use is the released tag of cuda-samples which is consistent with the cuda version in the environment or docker.
 # The Makefile of bandwidthTest does not have 'install' target, so need to copy bin to $(SB_MICRO_PATH)/bin/ and create $(SB_MICRO_PATH)/bin/ if not existing.
 bandwidthTest: sb_micro_path
-ifneq (,$(wildcard cuda-samples/Samples/bandwidthTest/Makefile))
-	cd cuda-samples && git checkout v$(shell nvcc --version | grep 'release' | awk '{print $$6}' | cut -c2- | cut -d '.' -f1-2)
+	if [ -d cuda-samples ]; then rm -rf cuda-samples; fi
+	git clone -b v$(shell nvcc --version | grep 'release' | awk '{print $$6}' | cut -c2- | cut -d '.' -f1-2) https://github.com/NVIDIA/cuda-samples.git ./cuda-samples
 	cd ./cuda-samples/Samples/bandwidthTest && make clean && make TARGET_ARCH=x86_64 SMS="70 75 80 86"
 	cp -v ./cuda-samples/Samples/bandwidthTest/bandwidthTest $(SB_MICRO_PATH)/bin/
-endif