emulator: Add Android 12L (DP) system images to android-sdk-packager

Bug: 1264159
Change-Id: I016f9393ba649f70b31740de8e95d744c88cc828
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3258326
Auto-Submit: Haiyang Pan <hypan@google.com>
Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Commit-Queue: Yaron Friedman <yfriedman@chromium.org>
Cr-Commit-Position: refs/heads/main@{#938861}
NOKEYCHECK=True
GitOrigin-RevId: 7769526f33fb68df8c6c8c9debf8f560a6cc2367