Upgrade emulator to emu-master-dev build 8681204 am: 49cbabdf35

Original change: https://googleplex-android-review.googlesource.com/c/platform/prebuilts/android-emulator/+/18783631

Change-Id: Id6a690a3e02d26b509ae64781bffac434010d225
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>