[nrf noup] add workflow for building Android release packages

Add a manually triggered workflow for building Android
CHIPTool release packages for all the supported platforms:
arm, arm64 and x64.

.github/workflows/release_android.yaml

@@ -0,0 +1,89 @@
+# Copyright (c) 2021 Project CHIP Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Release Android packages
+
+on:
+    workflow_dispatch:
+        inputs:
+            releaseTag:
+                description: Release Tag
+                required: true
+
+jobs:
+    android:
+        name: Build Android
+        timeout-minutes: 60
+
+        runs-on: ubuntu-latest
+
+        env:
+            JAVA_HOME: /usr/lib/jvm/java-8-openjdk-amd64/
+
+        container:
+            image: connectedhomeip/chip-build-android:latest
+            volumes:
+                - "/tmp/log_output:/tmp/test_logs"
+                - "/tmp/output_binaries:/tmp/output_binaries"
+
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v2
+              with:
+                  ref: "${{ github.event.inputs.releaseTag }}"
+                  submodules: true
+            - name: Bootstrap
+              timeout-minutes: 10
+              run: scripts/build/gn_bootstrap.sh
+            - name: Build arm CHIPTool
+              timeout-minutes: 10
+              env:
+                  BUILD_TYPE: android_arm
+                  TARGET_CPU: arm
+              run: |
+                  ./scripts/examples/android_app.sh
+                  yes | "$ANDROID_HOME"/tools/bin/sdkmanager --licenses
+                  cd src/android/CHIPTool
+                  ./gradlew build
+                  cp app/build/outputs/apk/release/app-release-unsigned.apk /tmp/output_binaries/chiptool-arm.apk
+            - name: Build arm64 CHIPTool
+              timeout-minutes: 10
+              env:
+                  BUILD_TYPE: android_arm64
+                  TARGET_CPU: arm64
+              run: |
+                  ./scripts/examples/android_app.sh
+                  yes | "$ANDROID_HOME"/tools/bin/sdkmanager --licenses
+                  cd src/android/CHIPTool
+                  ./gradlew build
+                  cp app/build/outputs/apk/release/app-release-unsigned.apk /tmp/output_binaries/chiptool-arm64.apk
+            - name: Build x64 CHIPTool
+              timeout-minutes: 10
+              env:
+                  BUILD_TYPE: android_x64
+                  TARGET_CPU: x64
+              run: |
+                  ./scripts/examples/android_app.sh
+                  yes | "$ANDROID_HOME"/tools/bin/sdkmanager --licenses
+                  cd src/android/CHIPTool
+                  ./gradlew build
+                  cp app/build/outputs/apk/release/app-release-unsigned.apk /tmp/output_binaries/chiptool-x64.apk
+            - name: Publish packages
+              uses: softprops/action-gh-release@v1
+              with:
+                  files: /tmp/output_binaries/chiptool-*.apk
+                  fail_on_unmatched_files: true
+                  tag_name: "${{ github.event.inputs.releaseTag }}"
+              env:
+                  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}