add loongarch ci build status

README.md

@@ -30,6 +30,7 @@ ncnn 是一个为手机端极致优化的高性能神经网络前向计算框架
 | Linux (ARM) | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/linux-arm-cpu-gcc)](https://github.com/Tencent/ncnn/actions?query=workflow%3Alinux-arm-cpu-gcc) | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/linux-aarch64-cpu-gcc)](https://github.com/Tencent/ncnn/actions?query=workflow%3Alinux-aarch64-cpu-gcc) | — | — |
 | Linux (MIPS) | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/linux-mips-cpu-gcc)](https://github.com/Tencent/ncnn/actions?query=workflow%3Alinux-mips-cpu-gcc) | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/linux-mips64-cpu-gcc)](https://github.com/Tencent/ncnn/actions?query=workflow%3Alinux-mips64-cpu-gcc) | — | — |
 | Linux (RISC-V) | — | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/linux-riscv64-cpu-gcc)](https://github.com/Tencent/ncnn/actions?query=workflow%3Alinux-riscv64-cpu-gcc) | — | — |
+| Linux (LoongArch) | — | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/linux-loongarch64-cpu-gcc)](https://github.com/Tencent/ncnn/actions?query=workflow%3Alinux-loongarch64-cpu-gcc) | — | — |
 | Windows (VS2015) | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/windows-x86-cpu-vs2015)](https://github.com/Tencent/ncnn/actions?query=workflow%3Awindows-x86-cpu-vs2015) | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/windows-x64-cpu-vs2015)](https://github.com/Tencent/ncnn/actions?query=workflow%3Awindows-x64-cpu-vs2015) | — | — |
 | Windows (VS2017) | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/windows-x86-cpu-vs2017)](https://github.com/Tencent/ncnn/actions?query=workflow%3Awindows-x86-cpu-vs2017) | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/windows-x64-cpu-vs2017)](https://github.com/Tencent/ncnn/actions?query=workflow%3Awindows-x64-cpu-vs2017) | — | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/windows-x64-gpu-vs2017)](https://github.com/Tencent/ncnn/actions?query=workflow%3Awindows-x64-gpu-vs2017) |
 | Windows (VS2019) | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/windows-x86-cpu-vs2019)](https://github.com/Tencent/ncnn/actions?query=workflow%3Awindows-x86-cpu-vs2019) | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/windows-x64-cpu-vs2019)](https://github.com/Tencent/ncnn/actions?query=workflow%3Awindows-x64-cpu-vs2019) | — | [![Build Status](https://img.shields.io/github/workflow/status/Tencent/ncnn/windows-x64-gpu-vs2019)](https://github.com/Tencent/ncnn/actions?query=workflow%3Awindows-x64-gpu-vs2019) |