Upgrade emulator to emu-master-dev build 7080978 am: cccc0b7873

Original change: https://android-review.googlesource.com/c/platform/prebuilts/android-emulator/+/1550566

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I2a98a06f078d242751591bcbf887acd0ac10d875