Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Update/fix Makefile.depend for userland

DIRDEPS_BUILD: Update dependencies.

Sponsored by: Dell EMC Isilon

efidp manipulates UEFI Device Paths in various ways. At the moment, it
formats and parses UEFI standard Device Paths. In the future it will
also translate between FreeBSD driver names and UEFI Device Paths.

Sponsored by: Netflix