Use new settings API

The new time manager code was using the old settings daemon.
Now it uses the new settings API.

Change-Id: Id551d97c28a6cfbb81c87118b26292b1b5574e93
Signed-off-by: Lei YU <mine260309@gmail.com>
diff --git a/Makefile.am b/Makefile.am
index bf7a559..09e8807 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -17,6 +17,7 @@
 	host_epoch.cpp \
 	manager.cpp \
 	utils.cpp \
+	settings.cpp \
 	${generated_source}
 
 phosphor_timemanager_SOURCES = \