Update mp4v2 to version 3.0.1.1

[Kevin Oberman]

I am just submitted a PR,
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212785 to update mp4v2 to
3.0.1.1 and change the source to github.

First port I've submitted in about a decade, so the submission format may
not be right. Please point out everything I did wrong.

In the comments I included a list of ports needing a PORT_REVISION bump.
--
Kevin Oberman, Part time kid herder and retired Network Engineer
E-mail: rkoberman at gmail.com
PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683