control: Extract bus object from config argument pack

All configured objects require a reference to the sdbusplus bus object
except Group objects, so instead of pass the reference twice to the
get the configured objects, extract the bus from the argument pack.

Change-Id: I4859f513863bd62999a9db7610d5955fc8116cb3
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
4 files changed