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: I29672cb229bd07022b00f52105ac1d50ecacca62
diff --git a/extensions/phal/fw_update_watch.cpp b/extensions/phal/fw_update_watch.cpp
index b778734..b85c2f0 100644
--- a/extensions/phal/fw_update_watch.cpp
+++ b/extensions/phal/fw_update_watch.cpp
@@ -33,7 +33,7 @@
 using InterfaceName = std::string;
 using InterfaceMap = std::map<InterfaceName, PropertyMap>;
 
-void Watch::fwIntfAddedCallback(sdbusplus::message::message& msg)
+void Watch::fwIntfAddedCallback(sdbusplus::message_t& msg)
 {
     //  DBusInterfaceAdded interfaces;
     sdbusplus::message::object_path objectPath;
@@ -43,7 +43,7 @@
     {
         msg.read(objectPath, interfaceMap);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         log<level::ERR>(fmt::format("Failed to parse software add signal"
                                     "Exception [{}] REPLY_SIG [{}]",