iop: genconfig: Lower priority of BCM target

This is a hack to retain existing behaviour in case of ambiguities of device names between differen targets. For now, let Broadcom have the lowest priority.

genconfig script is to be replaced soon and the existing code makes adding a proper check hard and we need some way to deal with the ambiguity quickly.

Signed-off-by: Andreas Gnau andreas.gnau@iopsys.eu