Fix typo in src/Makefile

[ROCm/rccl-tests commit: afdaf59b3b]

projects/rccl-tests/src/Makefile

@@ -21,7 +21,7 @@ CUDA_MAJOR = $(shell echo $(CUDA_VERSION) | cut -d "." -f 1)
 ifeq ($(shell test "0$(CUDA_MAJOR)" -ge 11; echo $$?),0)
 NVCC_GENCODE ?= -gencode=arch=compute_60,code=sm_60 \
                 -gencode=arch=compute_61,code=sm_61 \
-                -genncode=arch=compute_70,code=sm_70 \
+                -gencode=arch=compute_70,code=sm_70 \
                 -gencode=arch=compute_80,code=sm_80 \
                 -gencode=arch=compute_80,code=compute_80
 else