Move generated code to implementation file.

Change-Id: I5c1e250a0cfd3aecf84709b90bc01a97e5673eaf
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/Makefile.am b/Makefile.am
index 3915eab..0c1a9f7 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -3,6 +3,7 @@
 phosphor_inventory_SOURCES = \
 	app.cpp \
 	xyz.openbmc_project.Inventory.Manager.cpp \
+	generated.cpp \
 	manager.cpp
 phosphor_inventory_LDFLAGS = $(SYSTEMD_LIBS)
 phosphor_inventory_CFLAGS = $(SYSTEMD_CFLAGS)