Build projects in wamr-test-suites with multiple cores (#811)
Build projects in wamr-test-suites with multiple cores (#811)

Build several projects in wamr-test-suites with multiple cores to reduce
the compilation time.
bytecodealliance/wasm-micro-runtime,bytecodealliance/wasm-micro-runtime,bytecodealliance/wasm-micro-runtime,bytecodealliance/wasm-micro-runtime,bytecodealliance/wasm-micro-runtime,bytecodealliance/wasm-micro-runtime,bytecodealliance/wasm-micro-runtime,bytecodealliance/wasm-micro-runtime