fault-monitor: Add monitor-opertaional-status to meson.build

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I9ebe31773dc865b4ade9fbca985470d79d7dbe7a
diff --git a/fault-monitor/meson.build b/fault-monitor/meson.build
index ef7dfd1..254a218 100644
--- a/fault-monitor/meson.build
+++ b/fault-monitor/meson.build
@@ -1,9 +1,19 @@
 fault_monitor_sources = [
     generated_sources,
-    'fru-fault-monitor.cpp',
     'monitor-main.cpp',
 ]
 
+if get_option('monitor-operational-status').enabled()
+    fault_monitor_sources += [
+        '../utils.cpp',
+        'operational-status-monitor.cpp',
+        ]
+else
+    fault_monitor_sources += [
+        'fru-fault-monitor.cpp',
+        ]
+endif
+
 executable(
     'phosphor-fru-fault-monitor',
     fault_monitor_sources,