am e99e5474: Merge "Sync persist property immediately,in case of suddenly remove the battery."

* commit 'e99e5474e101034e2d6e095ebdca011cb62b9386':
  Sync persist property immediately,in case of suddenly remove the battery.
diff --git a/init/property_service.c b/init/property_service.c
index fe7cbb5..eb19f93 100644
--- a/init/property_service.c
+++ b/init/property_service.c
@@ -269,6 +269,7 @@
         return;
     }
     write(fd, value, strlen(value));
+    fsync(fd);
     close(fd);
 
     snprintf(path, sizeof(path), "%s/%s", PERSISTENT_PROPERTY_DIR, name);