add config settings for the sdk portage

BUG=b:20895978

Change-Id: I4edce5e6c17ee09cbe65798ffcb829a3573d9496
3 files changed
tree: 6b6adc03e3c8033d3214f262da3be090666d0e89
  1. etc/
  2. usr/
  3. .gitignore
  4. wrapper.py