In `tvm_runtime.h`, there are extra spaces in `STRINGIFY_MACRO(EXPAND(n1) EXPAND(n2))`.

[XuanqiCui]

🐛 Bug

To Reproduce

Steps to reproduce the behavior:

WhenBuild Android App from Source, during the Step 2. Build Runtime and Model Libraries, while executing mlc_llm package, there is a chance that a bug will be triggered due to the extra space between EXPAND(n1) and EXPAND(n2) in the #define CONCAT(n1, n2) STRINGIFY_MACRO(EXPAND(n1) EXPAND(n2)) code in tvm_runtime.h. This bug manifests as a space appearing between TVM_SOURCE_DIR and /src/runtime/c_runtime_api.cc when concatenating paths, causing the path to be unrecognizable.

[MasterJH5574]

We fixed this in #2616. Could you update and try again?