AppArmor logs denials for access to /usr/local/share/mime

This creates lots of noise in the logs which makes it harder to develop, debug, and analyze bug reports.
I think this is a regression brought by the VeraCrypt work which created that directory.
IIRC the freedesktop.org abstraction was updated upstream to support these paths => we should backport this.

Feature Branch: bugfix/15965-fix-apparmor-spamming-log

Parent Task: #14468

Original created by @intrigeri on 15965 (Redmine)