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: Ief1b330c4f623ecc1be771f36083780a12260834
diff --git a/src/ethernet_interface.hpp b/src/ethernet_interface.hpp
index 8928455..592d690 100644
--- a/src/ethernet_interface.hpp
+++ b/src/ethernet_interface.hpp
@@ -18,7 +18,7 @@
 namespace network
 {
 
-using Ifaces = sdbusplus::server::object::object<
+using Ifaces = sdbusplus::server::object_t<
     sdbusplus::xyz::openbmc_project::Network::server::EthernetInterface,
     sdbusplus::xyz::openbmc_project::Network::server::MACAddress,
     sdbusplus::xyz::openbmc_project::Network::IP::server::Create,
@@ -86,7 +86,7 @@
      *                          send.
      *  @param[in] enabled - Override the lookup of nicEnabled
      */
-    EthernetInterface(sdbusplus::bus::bus& bus, const std::string& objPath,
+    EthernetInterface(sdbusplus::bus_t& bus, const std::string& objPath,
                       DHCPConf dhcpEnabled, Manager& parent,
                       bool emitSignal = true,
                       std::optional<bool> enabled = std::nullopt);
@@ -327,7 +327,7 @@
     ServerList getstaticNameServerFromConf();
 
     /** @brief Persistent sdbusplus DBus bus connection. */
-    sdbusplus::bus::bus& bus;
+    sdbusplus::bus_t& bus;
 
     /** @brief Network Manager object. */
     Manager& manager;