utils: Ignore/skip disabled profiles
This is needed to avoid a "Conflicting profiles" error if there are two profiles for an application, with one of them disabled.
This is not a theoretical usecase - for example, apparmor.d ships some profiles that replace our "userns+unconfined" profiles. These profiles use a different filename, and apparmor.d also creates a disable symlink for the "userns+unconfined" profile it replaces.
I propose this patch for 4.0 and master.