mem-ruby: Check number of vnets when creating links

Added error checking to ensure that the system has sufficient virtual
networks when setting latency and weight values.

Change-Id: I1b28144bbe9fefab0c0a6227f1fdf4ea10403061
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/32603
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
1 file changed