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/create_pel.cpp b/extensions/phal/create_pel.cpp
index 75ee064..6cbf305 100644
--- a/extensions/phal/create_pel.cpp
+++ b/extensions/phal/create_pel.cpp
@@ -115,7 +115,7 @@
         method.append(event, level, additionalData, pelCalloutInfo);
         auto resp = bus.call(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         log<level::ERR>(
             fmt::format("D-Bus call exception",
@@ -222,7 +222,7 @@
         response.read(reply);
         plid = std::get<1>(reply); // platform log id is tuple "second"
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         log<level::ERR>(fmt::format("D-Bus call exception",
                                     "OBJPATH={}, INTERFACE={}, EXCEPTION={}",
@@ -263,7 +263,7 @@
         method.append(event, level, additionalData);
         auto resp = bus.call(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         log<level::ERR>(fmt::format("sdbusplus D-Bus call exception",
                                     "OBJPATH={}, INTERFACE={}, EXCEPTION={}",