Android U Beta 1 GPL
Upgrade emulator to emu-master-dev build 9070145 am: 7c9394a2f9 am: d5152de42c am: 8c67091c4a am: 62f0674a90

Original change: https://android-review.googlesource.com/c/platform/prebuilts/android-emulator/+/2218406

Change-Id: Ice49e1e559703c2366e4180596b331d380554117
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>