meta-networking: update BBFILE_COLLECTIONS to networking-layer

Adopting the common convention of naming BBFILE_COLLECTIONS to be
<layername>-layer.

Signed-off-by: Joe MacDonald <joe@deserted.net>
quagga: two fixes

1. quagga should depend on iproute2, since ip from busybox is not sufficient
2. fix a typOS(should chmod, not chown)

Signed-off-by: Roy.Li <rongqing.li@windriver.com>
Signed-off-by: Joe MacDonald <joe@deserted.net>