net: move cmds for network components to config

Instead of hardcoding wrappers such as gdb for various commands in
run.sh, put all commands into a config file so the user can add
gdb/valgrind/strace/udtrace/... to the program they are currently
interested in debugging in their own config.

Change-Id: Ifce731ab61d263e9df7a8dc87dd572ca3d30f8dd
3 files changed