Initial manifest for Raspberry Pi (rpi).
Merge pull request #217 from cgjones/rpi

Initial manifest for Raspberry Pi (rpi).
use local aosp/mozillaorg mirror

Change-Id: I9d43700cff3b1678830adf8c2906748424f17138
use git.mozilla.org

Change-Id: Ie6dee5ddc36ba2da44d9f1a7f6dd76f2b0c09b6b