run-config.sh

The new parameter is obtained from getNetworkInterface() in "common.sh" file
when there is more than one default route set. Otherwise, the "interface"
variable will be an empty string.

Signed-off-by: Erik Alexandre Pucci <eap08@c3sl.ufpr.br>
Acked-by: Ricardo Tavares de Oliveira <rto07@c3sl.ufpr.br>
Signed-off-by: Danilo K. S. Yorinori <danilok@c3sl.ufpr.br>