Merge "Update android-support-test prebuilts." into oreo-cts-dev am: 8d1bba5bee am: 248693fe30 am: 318c95c92b  -s ours am: 18d63dc0f7
am: 9e5e02d88e

Change-Id: Iaa520b75cc2df43104bfda312552c412fd07dacd