Update git submodules

* Update ChronoSync from branch 'master'
  to 40491df37bd0f49cdc00f4fcc3334f695520e910
  - build: update waf to version 2.0.6
    
    Change-Id: I9cb1f2dbd01312a0b113dd33a4ca9fae344b087c
    
diff --git a/ChronoSync b/ChronoSync
index f5fca3a..40491df 160000
--- a/ChronoSync
+++ b/ChronoSync
@@ -1 +1 @@
-Subproject commit f5fca3a95db06eae0d8b9e7e23d09176fe40131a
+Subproject commit 40491df37bd0f49cdc00f4fcc3334f695520e910