sdbus++: use non-deprecated namespaces

The sdbusplus repository has deprecated some namespaces and they are
currently only enabled with the SDBUSPP_REMOVE_DEPRECATED_NAMESPACE
guard.  Switch to the new namespace names.

Change-Id: Iaab6df118eb4dc65139e759dcb22851422f88389
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/mmc/flash.cpp b/mmc/flash.cpp
index 3bc2ab8..de47e83 100644
--- a/mmc/flash.cpp
+++ b/mmc/flash.cpp
@@ -12,7 +12,7 @@
 namespace updater
 {
 
-namespace softwareServer = sdbusplus::xyz::openbmc_project::Software::server;
+namespace softwareServer = sdbusplus::server::xyz::openbmc_project::software;
 
 void Activation::flashWrite()
 {