Rename mapper to be emulator specific am: 440bf82dbe am: d6cd1f8b99 am: c99d14cc19

Original change: https://googleplex-android-review.googlesource.com/c/device/generic/goldfish-opengl/+/10726529

Change-Id: I24ba81cc72939b5898f47a2c13eeac8b2bfe2a38