Don't print PE/PV/PR changes as related field changes of related field
changes (i.e. only print them once at the top level).
(From OE-Core rev: 33046605549501bed9ceff102614d86ba54a5891)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>