Dynamically update connectivity and IP address.

The settings status page dynamically updates mobile network
status (in/out of service, signal strength, network type, etc.)
but not IP address and connectivity information. Dynamically
update that information as well, for consistency.

For consistency, also update the advanced wifi settings page.

[Cherry-pick of deb8f08a]

Bug: 10232006
Change-Id: I3a292d8bd9e36ab16c37e107eefff4b37d884a4c