selinux: New rw privileges for themes

- New theme_data_file context for files under /data/system/theme
- Permit systemserver to create files/dirs under /data/resource-cache
- Permit systemserver to create files/dirs under /data/system/theme

Change-Id: Id597fc20b477ea395a8631623f26a7edde280799
sepolicy: remove stray + in type statement

Change-Id: Ic34c9ae32658541064a63153612145c6fd3d55b3
Change roaming protocol for "telenor.smart" to IPv4

* As per info on telenor.no

Change-Id: I7d5febd07e362d38880b454a45a3b692f52a954c