Upgrade emulator to emu-master-dev build 6659675 am: fea18b6695 am: 59c73bb0dc

Original change: https://android-review.googlesource.com/c/platform/prebuilts/android-emulator/+/1357667

Change-Id: I7c2161468bdbded744d2cc97a0b4412ff0d8aa5a