sdbusplus: use shorter type aliases

The sdbusplus headers provide shortened aliases for many types.
Switch to using them to provide better code clarity and shorter
lines.  Possible replacements are for:
  * bus_t
  * exception_t
  * manager_t
  * match_t
  * message_t
  * object_t
  * slot_t

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ie36d234f4580029a7832a0cd179f3bb78a1a403f
diff --git a/dbus/dbuspassive.hpp b/dbus/dbuspassive.hpp
index bc16719..72ad9a5 100644
--- a/dbus/dbuspassive.hpp
+++ b/dbus/dbuspassive.hpp
@@ -41,12 +41,12 @@
 {
   public:
     static std::unique_ptr<ReadInterface> createDbusPassive(
-        sdbusplus::bus::bus& bus, const std::string& type,
-        const std::string& id, std::unique_ptr<DbusHelperInterface> helper,
+        sdbusplus::bus_t& bus, const std::string& type, const std::string& id,
+        std::unique_ptr<DbusHelperInterface> helper,
         const conf::SensorConfig* info,
         const std::shared_ptr<DbusPassiveRedundancy>& redundancy);
 
-    DbusPassive(sdbusplus::bus::bus& bus, const std::string& type,
+    DbusPassive(sdbusplus::bus_t& bus, const std::string& type,
                 const std::string& id,
                 std::unique_ptr<DbusHelperInterface> helper,
                 const SensorProperties& settings, bool failed,
@@ -94,6 +94,6 @@
     std::chrono::high_resolution_clock::time_point _updated;
 };
 
-int handleSensorValue(sdbusplus::message::message& msg, DbusPassive* owner);
+int handleSensorValue(sdbusplus::message_t& msg, DbusPassive* owner);
 
 } // namespace pid_control