Update LICENSE* in audio/faac; remove from LEGAL

Detailed log:

• Remove audio/faac from LEGAL. There is no evidence that faac may not be redistributed on sold media like FreeBSD CDs/DVDs. Other well-established open source organisations arrive at the same conclusion, e.g. Debian: http://metadata.ftp-master.debian.org/changelogs//non-free/f/faac/faac_1.28-6_copyright and, by extension, Ubuntu: https://launchpad.net/ubuntu/trusty/+source/faac/+copyright Arch Linux ships redistributable packages as well: https://www.archlinux.org/packages/?sort=&repo=Extra&q=faac
• Add LICENSE* tags in audio/faac
• Bump PORTREVISION in audio/faac (package metadata changes)
• Pet portlint

PR: 209959
Submitted by: takefu@airport.fm
Reviewed by: riggs