hotplug:  Touch a file on interface creation.

This can be used to monitor mwifiex firmware resets with inotify.
pyinotify doesn't see creation of file-like objects in /sys/class/net.

Separately, fixes a bug in which an interface name was hard-coded
(this bug currently has no effect, but would have once conman is
installed on RGs).

Bug: 34040473

Change-Id: I5392b043d57b90c3b0f23ffdfd162c6e5ae19887
1 file changed