Blackfin: cm-bf537e/cm-bf537u/tcm-bf537: update network settings

These boards can have an addon card plugged onto them, so enable
support for it.

Signed-off-by: Harald Krapfenbauer <harald.krapfenbauer@bluetechnix.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
6 files changed