Remove SDBUSPP_REMOVE_DEPRECATED_NAMESPACE

Fix the code to support new sdbusplus error without
SDBUSPP_REMOVE_DEPRECATED_NAMESPACE.

Change-Id: I12713ec1757d3835e1acf07c7abf409ff97615e1
Signed-off-by: Willy Tu <wltu@google.com>
diff --git a/extensions/openpower-pels/manager.hpp b/extensions/openpower-pels/manager.hpp
index b8c5442..c5bda7f 100644
--- a/extensions/openpower-pels/manager.hpp
+++ b/extensions/openpower-pels/manager.hpp
@@ -551,7 +551,7 @@
      */
     std::map<std::string,
              std::unique_ptr<
-                 sdbusplus::org::open_power::Logging::PEL::server::Entry>>
+                 sdbusplus::server::org::open_power::logging::pel::Entry>>
         _pelEntries;
 
     /**