Add trace update script

Add a script that pulls in trace results from VIXL, and update the README for
this.

Change-Id: I85e207be31ddea079a0ae0db5a4186aaae69d0d4
2 files changed
tree: 3e2fd9b27ff741c6ea1e3f304f7716d90baed5e6
  1. pull-from-vixl.sh
  2. README