http_application_update sample to work in local LAN

[Praveen katari]

Hi 

i wanted to run http_application_update sample project on a local LAN.  Please suggest me what all changes i have to make to sample project.

i have connected my board and BTS as shown bleow

i will run the HTTP server listening on the IP xxx.xxx.1.80:8000.

[Praveen katari]

in my case i will not have internet to nRF9160