Add support for RP2350 autobuild.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

.github/workflows/nightly.yml

@@ -19,13 +19,20 @@ jobs:
         with:
           ref: ${{ matrix.refs }}
           submodules: 'recursive'
+      - name: Restore private key
+        run: |
+          echo "${{ secrets.PRIVATE_KEY_B64 }}" | base64 -d > private.pem
+          chmod 600 private.pem
       - name : Build
         env:
           PICO_SDK_PATH: ../pico-sdk
+          SECURE_BOOT_PKEY: private.pem
         run: |
            ./workflows/autobuild.sh pico
            ./build_pico_fido2.sh
            ./workflows/autobuild.sh esp32
+      - name: Delete private key
+        run: rm private.pem
       - name: Update nightly release
         uses: pyTooling/Actions/releaser@main
         with:

build_pico_fido2.sh

@@ -15,12 +15,13 @@ cd build_release
 
 PICO_SDK_PATH="${PICO_SDK_PATH:-../../pico-sdk}"
 board_dir=${PICO_SDK_PATH}/src/boards/include/boards
+SECURE_BOOT_PKEY="${SECURE_BOOT_PKEY:-../../ec_private_key.pem}"
 
 for board in "$board_dir"/*
 do
     board_name="$(basename -- "$board" .h)"
     rm -rf -- ./*
-    PICO_SDK_PATH="${PICO_SDK_PATH}" cmake .. -DPICO_BOARD=$board_name -DSECURE_BOOT_PKEY=../../ec_private_key.pem -DENABLE_EDDSA=1
+    PICO_SDK_PATH="${PICO_SDK_PATH}" cmake .. -DPICO_BOARD=$board_name -DSECURE_BOOT_PKEY=${SECURE_BOOT_PKEY} -DENABLE_EDDSA=1
     make -j`nproc`
     mv pico_fido2.uf2 ../release/pico_fido2_$board_name-$SUFFIX.uf2
 done