boards.cfg: move more boards with invalid emails to Orphan

Emails to the following addresses have been bouncing.

 - Nye Liu <nyet@zumanetworks.com>
 - Jim Thompson <jim@musenki.com>
 - Brad Kemp <Brad.Kemp@seranoa.com>

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>