base: added national roaming for Orange in Austria

http://jira.omnirom.org/browse/OMNI-376

Users of Orange in Autria (MCC 232 MNC 05) which is now a subcompany
of 3AT can roam on 3AT (MNC10) and also on t-mobile (MNC03) for 2G

Change-Id: I593c1bdeea3ef712541b4962369a02b2d7c86c5b
(cherry picked from commit 2aa2511b8d3cd8d23b0fd1b3911c327f25bc4f93)