host: power_restore: switch to new settings API

Change-Id: Ie44e421ad690527d1883f03dcde9d499282ecacc
Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
diff --git a/Makefile.am b/Makefile.am
index e392086..a0d5d10 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -22,7 +22,8 @@
 	bmc_state_manager_main.cpp
 
 phosphor_discover_system_state_SOURCES = \
-	discover_system_state.cpp
+	discover_system_state.cpp \
+	settings.cpp
 
 phosphor_host_check_SOURCES = \
 	host_check_main.cpp