tree 4bfd8f979b032ae88c453583f06d4d6b34e60125
parent 7d2449a868a536fcfa800ed7d259101292a307e7
author Christopher R. Palmer <crpalmer@gmail.com> 1431458457 -0400
committer Steve Kondik <steve@cyngn.com> 1445921742 -0700

base: Nat464: unregister network observer when we stop!

Otherwise we will continue to receive updates.  Each time the
network is brought up and down, that will leave one more observer.
Each observer will be telling the ConnectivityService to update
the link properties for the link which caues it to reevaluate all
the network connections on all the links.

If a network link is brought up and down frequently this can then
cause a massive amount of CPU and kills deep sleep.

Change-Id: If5dc89c7b6418d4b6c44ef149e0dd6dc5e25b2ee