Move dbus connection into base sensor object

This seems common through most sensors, might as
well move it for consistency.

Tested: sensors operational as normal

Change-Id: I4e6c55cbb7171ee51700015f8c2ef8c05c90fb4e
Signed-off-by: James Feist <james.feist@linux.intel.com>
diff --git a/src/CPUSensor.cpp b/src/CPUSensor.cpp
index 4377bf9..684c430 100644
--- a/src/CPUSensor.cpp
+++ b/src/CPUSensor.cpp
@@ -44,7 +44,7 @@
                      bool show, double dtsOffset) :
     Sensor(boost::replace_all_copy(sensorName, " ", "_"),
            std::move(_thresholds), sensorConfiguration, objectType, maxReading,
-           minReading, PowerState::on),
+           minReading, conn, PowerState::on),
     objServer(objectServer), inputDev(io), waitTimer(io), path(path),
     privTcontrol(std::numeric_limits<double>::quiet_NaN()),
     dtsOffset(dtsOffset), show(show), pollTime(CPUSensor::sensorPollMs),