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: I8e2242adb79be342562c9b7f3d2153dfdf578085
diff --git a/host-bmc/host_pdr_handler.hpp b/host-bmc/host_pdr_handler.hpp
index 9ea8611..694bcdd 100644
--- a/host-bmc/host_pdr_handler.hpp
+++ b/host-bmc/host_pdr_handler.hpp
@@ -246,7 +246,7 @@
      */
     std::map<EntityType, pldm_entity> parents;
     /** @brief D-Bus property changed signal match */
-    std::unique_ptr<sdbusplus::bus::match::match> hostOffMatch;
+    std::unique_ptr<sdbusplus::bus::match_t> hostOffMatch;
 
     /** @brief sensorMap is a lookup data structure that is build from the
      *         hostPDR that speeds up the lookup of <TerminusID, SensorID> in