[CFT] New version of webcamd, now v4.12.0.1

Hi,

If you are using webcamd, please help test the latest version which
includes the most recent Linux v4.12-rc1 media tree sources.
  The latest webcamd port is available from here:

svn --username anonsvn --password anonsvn \
        checkout svn://svn.turbocat.net/i4b/trunk/ports/multimedia/webcamd

Please test and report any regression issues to me or
freebsd-multimedia_at_freebsd.org

Changes:
- updated all Linux kernel sources to the latest Linux' Torvalds
- fixed a minor I2C related bug in the webcamd Linux kernel emulation
- improved Linux kernel emulation support

Related work:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196678

--HPS