Fixes [YOCTO #2808]
This figure is slightly different than our reference environment
figure used in the QS. I did not want to simply duplicate it.
Here the only difference is boxing in the metadata layer input
to the left.
(From yocto-docs rev: d1c8c69dfb5ec4261b8e5d15de6d5088fde86024)
Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>