trunk.yml: Add CI job to validate RPI tutorial scripts

Author: psiddh

.github/workflows/trunk.yml

@@ -1066,3 +1066,50 @@ jobs:
 
           .ci/scripts/test_model.ps1 -modelName ${{ matrix.model }} -backend ${{ matrix.backend }}
         }"
+  
+  test-rpi-scripts:
+    name: test-rpi-scripts
+    uses: pytorch/test-infra/.github/workflows/linux_job_v2.yml@release/2.9
+    strategy:
+      matrix:
+        include:
+          - build-tool: cmake
+      fail-fast: false
+    permissions:
+      id-token: write
+      contents: read
+    with:
+      runner: linux.2xlarge
+      docker-image: ci-image:executorch-ubuntu-22.04-arm-sdk
+      submodules: 'recursive'
+      ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
+      timeout: 90
+      script: |
+
+        # The generic Linux job chooses to use base env, not the one setup by the image
+        CONDA_ENV=$(conda env list --json | jq -r ".envs | .[-1]")
+        conda activate "${CONDA_ENV}"
+
+        # Validate the Raspberry Pi setup scripts
+
+        ## Pi5
+        examples/raspberry_pi/setup.sh pi5
+        examples/raspberry_pi/setup.sh pi5 --clean
+
+        ## Pi4
+
+        examples/raspberry_pi/setup.sh pi4
+        examples/raspberry_pi/setup.sh pi4 --clean
+
+        # Validate the script for Pico2 setup
+
+        ## Generate model
+        cd ./examples/raspberry_pi/pico2
+        ## Creates balanced_tiny_mlp_mnist.pte
+        python export_mlp_mnist.py
+        cd -
+        examples/raspberry_pi/pico2/build_firmware_pico.sh --model=balanced_tiny_mlp_mnist.pte
+
+        examples/raspberry_pi/pico2/build_firmware_pico.sh --clean
+        rm ./examples/raspberry_pi/pico2/balanced_tiny_mlp_mnist.pte
+