[APP] improve parameter pack (#645)

apps/howto_deploy/tvm_runtime_pack.cc

@@ -44,10 +44,19 @@
 // #include "../../src/runtime/rpc/rpc_event_impl.cc"
 // #include "../../src/runtime/rpc/rpc_server_env.cc"
 
+// These macros enables the device API when uncommented.
+#define TVM_CUDA_RUNTIME 1
+#define TVM_METAL_RUNTIME 1
+#define TVM_OPENCL_RUNTIME 1
+
 // Uncomment the following lines to enable Metal
 // #include "../../src/runtime/metal/metal_device_api.mm"
 // #include "../../src/runtime/metal/metal_module.mm"
 
+// Uncomment the following lines to enable CUDA
+// #include "../../src/runtime/cuda/cuda_device_api.cc"
+// #include "../../src/runtime/cuda/cuda_runtime.cc"
+
 // Uncomment the following lines to enable OpenCL
 // #include "../../src/runtime/opencl/opencl_device_api.cc"
 // #include "../../src/runtime/opencl/opencl_module.cc"