Sanitizer bot: disable h/w accel on the android emulator.

These bot run on GCE and start Android emulator inside a virtualized Linux instance.
This is suboptimal, but a lot easier to setup than the alternatives.



git-svn-id: https://llvm.org/svn/llvm-project/zorg/trunk@222824 91177308-0d34-0410-b5e6-96231b3b80d8