Support using T-head-Semi/csi-nn2 for RISC-V

[csukuangfj]

It uses

• https://github.com/T-head-Semi/csi-nn2
• https://github.com/zhangwm-pt/onnxruntime

You can find the pre-compiled onnxruntime lib at
https://github.com/csukuangfj/onnxruntime-libs/releases/tag/v1.14.1

---

We can use qemu-riscv64 in github actions to decode files with a streaming ASR model and a VITS model to convert text to speech.

Note

This may be the first open-source project that supports RISC-V for speech-to-text and text-to-speech with onnxruntime.

Usage

Please read the CI test file for usage.

We will add doc for it later.

[csukuangfj]

---

(py38) kuangfangjun:onnxruntime-linux-riscv64-glibc2_17-Release-1.14.1$ ls -lh lib/
total 26M
-rwxr-xr-x 1 kuangfangjun root 13M Mar  6 12:06 libonnxruntime.so
-rwxr-xr-x 1 kuangfangjun root 13M Mar  6 12:06 libonnxruntime.so.1.14.1
(py38) kuangfangjun:onnxruntime-linux-riscv64-glibc2_17-Release-1.14.1$ ls -lh include/
total 336K
-rw-r--r-- 1 kuangfangjun root  397 Mar  6 12:06 cpu_provider_factory.h
-rw-r--r-- 1 kuangfangjun root 167K Mar  6 12:06 onnxruntime_c_api.h
-rw-r--r-- 1 kuangfangjun root  86K Mar  6 12:06 onnxruntime_cxx_api.h
-rw-r--r-- 1 kuangfangjun root  68K Mar  6 12:06 onnxruntime_cxx_inline.h
-rw-r--r-- 1 kuangfangjun root 1.6K Mar  6 12:06 onnxruntime_run_options_config_keys.h
-rw-r--r-- 1 kuangfangjun root  12K Mar  6 12:06 onnxruntime_session_options_config_keys.h
-rw-r--r-- 1 kuangfangjun root  481 Mar  6 12:06 provider_options.h
(py38) kuangfangjun:onnxruntime-linux-riscv64-glibc2_17-Release-1.14.1$ file lib/libonnxruntime.so
lib/libonnxruntime.so: ELF 64-bit LSB shared object, UCB RISC-V, version 1 (SYSV), dynamically linked, not stripped