ipmid: Update sdbuspp namespaces

Fixed all errors when we remove
`SDBUSPP_REMOVE_DEPRECATED_NAMESPACE` in sdbusplus.

Change-Id: I5607585b2709faa7aee347d26e458ef769ca1626
Signed-off-by: Willy Tu <wltu@google.com>
diff --git a/systemintfcmds.cpp b/systemintfcmds.cpp
index 1ab2322..8e1cdb0 100644
--- a/systemintfcmds.cpp
+++ b/systemintfcmds.cpp
@@ -12,7 +12,7 @@
 
 void register_netfn_app_functions() __attribute__((constructor));
 
-using namespace sdbusplus::xyz::openbmc_project::Control::server;
+using namespace sdbusplus::server::xyz::openbmc_project::control;
 
 // For accessing Host command manager
 using cmdManagerPtr = std::unique_ptr<phosphor::host::command::Manager>;