Add licenses and common.mk files.

Add MODULE_LICENSE_BSD and copy Chromium OS's current
LICENSE file to NOTICE.

Also copied common.mk from chromiumos/platform2 as of
9ddc4e70cd91c04154413ea909588ab4076bfe97.

Bug: 22487289
Change-Id: I092a1def9fb937cedd95ef853db3c2df0f3337b3
4 files changed