• Add security/u2f-devd dependency to ensure the maintenance of the devd rulesets

for U2F devices

• Drop pkg-message.in because u2f-devd port provides it
• Bump PORTREVISION

libu2f-host installs /usr/local/etc/devd/u2f.conf.sample, but it only works
on /dev/usb/*, doesn't touch /dev/uhid*.

One of the requirements is that /dev/uhid* files should be readable/writable
to the user who runs chromium.