Use metal instance for Android emulator for KVM support

Differential Revision: D62299612

Pull Request resolved: #5127

Author: huydhn

.github/workflows/android.yml

@@ -80,7 +80,8 @@ jobs:
   # Running Android emulator directly on the runner and not using Docker
   run-emulator:
     needs: build-llm-demo
-    runs-on: amz2023.linux.4xlarge
+    # NB: Use metal install for KVM support to run the emulator faster
+    runs-on: linux.24xl.spr-metal
     env:
       ANDROID_NDK_VERSION: r26c
       API_LEVEL: 34
@@ -128,9 +129,6 @@ jobs:
         uses: reactivecircus/android-emulator-runner@v2
         with:
           api-level: ${{ env.API_LEVEL }}
-          # NB: x86_64 emulator is slow because the lack of KVM support on AWS, it
-          # seems that we can use metal instance for that but it hasn't been tried
-          # out yet. Also arm64-v8a arch requires an ARM runner
           arch: x86_64
           script: ./build/run_android_emulator.sh
           # NB: This is to boot the emulator faster following the instructions on