bond: Simply bond sysfs group creation

This patch delegates the work of creating the sysfs groups
to the netdev layer and ultimately to the device layer.  This
closes races between uevents.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/bonding/bond_main.c
Simple merge

diff --cc drivers/net/bonding/bond_sysfs.c
Simple merge

diff --cc drivers/net/bonding/bonding.h
Simple merge