sysutils/mtpfs: update port to use git repo - The old repo is not maintained, the git repo is periodically updated

[jhixson]

Summary

sysutils/mtpfs: update port to use git repo

• The old repo is not maintained, the git repo is periodically updated

Test Plan

Tested with poudriere for 11.2 and 12.0

[mat]

The old repo is not maintained, the git repo is periodically updated

So, the commit you choose is exactly the same version as the old 1.1 version, right?