action: add risc-v test on Ubuntu

RISC-V is going to be one of the officially supported archtiecture, soon.
Test it and reject a PR if it breaks RISC-V builds.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>

Author: myungjoo

.github/workflows/get_ssat.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+pushd /usr/bin/
+wget https://raw.githubusercontent.com/myungjoo/SSAT/main/ssat.sh
+wget https://raw.githubusercontent.com/myungjoo/SSAT/main/ssat-api.sh
+chmod 755 ssat*.sh
+ln -s ssat.sh ssat
+popd
+
+mkdir -p /tmp/bmp2png
+pushd /tmp/bmp2png
+wget https://raw.githubusercontent.com/myungjoo/SSAT/main/util/bmp2png.c
+wget https://raw.githubusercontent.com/myungjoo/SSAT/main/util/meson.build
+meson build
+ninja -C build
+cp build/bmp2png /usr/bin
+popd

.github/workflows/risc-v.yml

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+name: Test RISCV64 on Ubuntu
+
+on:
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build_job:
+    runs-on: ubuntu-20.04
+    name: Build on Ubuntu 20.04 RISC-V 64
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Check if rebuild required
+        uses: ./.github/actions/check-rebuild
+        with:
+          mode: rebuild
+      - uses: uraimo/run-on-arch-action@v2
+        name: RISCV64 Run-on-arch
+        if: env.rebuild == '1'
+        id: roaa_runcmd
+        with:
+          arch: riscv64
+          distro: ubuntu22.04
+
+          githubToken: ${{ github.token }}
+
+          install: |
+            apt-get -qy update
+            apt-get -qy install meson ninja-build libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libglib2.0-dev libjson-glib-dev gstreamer1.0-tools gstreamer1.0-plugins-base gstreamer1.0-plugins-good libgtest-dev libpng-dev libopencv-dev python3 python3-dev python3-numpy pkg-config gcc g++ liblua5.1-dev bash wget libpng-dev libopenblas-dev cmake libiniparser-dev libjsoncpp-dev
+          run: |
+            bash .github/workflows/get_ssat.sh
+            meson build -Denable-test=true -Denable-debug=true -Denable-tflite-backbone=false -Denable-tflite-interpreter=false
+            ninja -C build
+            export NNSTREAMER_CONF=$(pwd)/test/nnstreamer/nnstreamer-test.ini
+            export NNSTREAMER_FILTERS=$(pwd)/build/nnstreamer/tensor_filter
+            export NNSTREAMER_TRAINERS=$(pwd)/build/nnstreamer/tensor_trainer
+            meson test -C build -t 2.0 --print-errorlogs