tree 717edad90f12429035c72e27b43ef90d196cf1e8
parent e700f9855cf56de3b2f319a33ba9992e7109dd38
author Allan Zhang <allanzhang@google.com> 1429218982 -0700
committer Allan Zhang <allanzhang@google.com> 1429223289 -0700

Add extra_bootargs into kernel boot option

Manufacture team wants more options to be delivered to kernel/daemons.
Introduced extra_bootargs as other platforms and added default
debug, factory, wifical k/v pairs

Change-Id: I54bb9141eb5220462d12d605b4d83b869b804c98