Create a docker image for mediatek (#7169)

Summary:

As title, create a dedicated docker image for MediaTek

Differential Revision: D66738918

Author: cccclai

.ci/docker/build.sh

@@ -41,6 +41,10 @@ case "${IMAGE_NAME}" in
     QNN_SDK=yes
     CLANG_VERSION=12
     ;;
+  executorch-ubuntu-22.04-mediatek-sdk)
+    MEDIATEK_SDK=yes
+    CLANG_VERSION=12
+    ;;
   executorch-ubuntu-22.04-clang12-android)
     LINTRUNNER=""
     CLANG_VERSION=12
@@ -77,6 +81,7 @@ docker build \
   --build-arg "BUILD_DOCS=${BUILD_DOCS}" \
   --build-arg "ARM_SDK=${ARM_SDK:-}" \
   --build-arg "QNN_SDK=${QNN_SDK:-}" \
+  --build-arg "MEDIATEK_SDK=${MEDIATEK_SDK:-}" \
   --build-arg "ANDROID_NDK_VERSION=${ANDROID_NDK_VERSION:-}" \
   -f "${OS}"/Dockerfile \
   "$@" \

.ci/docker/ubuntu/Dockerfile

@@ -85,5 +85,7 @@ RUN if [ -n "${ARM_SDK}" ]; then git config --global user.email "[email protected]
 
 ARG QNN_SDK
 
+ARG MEDIATEK_SDK
+
 USER ci-user
 CMD ["bash"]

.github/workflows/docker-builds.yml

@@ -42,6 +42,7 @@ jobs:
           - docker-image-name: executorch-ubuntu-22.04-linter
           - docker-image-name: executorch-ubuntu-22.04-arm-sdk
           - docker-image-name: executorch-ubuntu-22.04-qnn-sdk
+          - docker-image-name: executorch-ubuntu-22.04-mediatek-sdk
           - docker-image-name: executorch-ubuntu-22.04-clang12-android
     env:
       DOCKER_IMAGE: 308535385114.dkr.ecr.us-east-1.amazonaws.com/executorch/${{ matrix.docker-image-name }}

.github/workflows/pull.yml

@@ -504,3 +504,21 @@ jobs:
 
         # run llama runner in eager mode
         PYTHON_EXECUTABLE=python bash .ci/scripts/test_llama_runner_eager.sh
+
+  test-mediatek-models-linux:
+    name: test-mediatek-models-linux
+    uses: pytorch/test-infra/.github/workflows/linux_job.yml@main
+    strategy:
+      fail-fast: false
+    with:
+      runner: linux.24xlarge
+      docker-image: executorch-ubuntu-22.04-mediatek-sdk
+      submodules: 'true'
+      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}"
+
+        # placeholder for mediatek to add more tests