Add missing semicolon

Author: samanklesaria

src/libtorchaudio/rnnt/gpu/compute_alphas.cu

@@ -44,8 +44,8 @@ RAIIATH compute_alphas(
   int32_t logits_dtype;
   aoti_torch_get_dtype(logits.get(), &logits_dtype);
 
-  aoti_torch_get_current_cuda_stream(logits_device_index, &options.stream_);
-  cudaSetDevice(logits_device)
+  aoti_torch_get_current_cuda_stream(logits_device_index, (void**)&options.stream_);
+  cudaSetDevice(logits_device);
   options.device_ = GPU;
 
   int64_t param_sizes[3] = {options.batchSize_ * options.nHypos_, options.maxSrcLen_, options.maxTgtLen_};