Update emulator to use xamarin

.ado/templates/android-dep-setup.yml

@@ -10,7 +10,7 @@ steps:
         echo "y" | $ANDROID_HOME/tools/bin/sdkmanager --install 'system-images;android-27;google_apis;x86'
 
         # Create emulator
-        echo "no" | $ANDROID_HOME/tools/bin/avdmanager create avd -n android_emulator -k 'system-images;android-27;google_apis;x86' --force
+        echo "no" | $ANDROID_HOME/tools/bin/avdmanager create avd -n xamarin_android_emulator -k 'system-images;android-27;google_apis;x86' --force
 
          # list emulator
         echo "Available emulator"
@@ -19,7 +19,7 @@ steps:
         echo "Starting emulator"
 
         # Start emulator in background
-        nohup $ANDROID_HOME/emulator/emulator -avd android_emulator -no-snapshot > /dev/null 2>&1 &
+        nohup $ANDROID_HOME/emulator/emulator -avd xamarin_android_emulator -no-snapshot > /dev/null 2>&1 &
         $ANDROID_HOME/platform-tools/adb wait-for-device shell 'while [[ -z $(getprop sys.boot_completed | tr -d '\r') ]]; do sleep 1; done; input keyevent 82'
 
         #list online device/emulator