Fixes [YOCTO 5766]
I removed the note about the "live" IMAGE_TYPES. Turns out I
was wrong on this information. It does not create a "directdisk"
image. That is accomplished through a .bbclass.
(From yocto-docs rev: a3b762be9933178e9cecdac3fa9e110c031a64d0)
Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>