Updated git submodules

Project: sfc master da72d9452ffdceea23382d3417c30b58f491de6d

Fix findbugs/sonar violations in sfc-vpp-utils

- Utility classes should not have public constructors
- Method invokes inefficient new String(String) constructor
- Private method is never called
- Method invokes inefficient Number constructor; use static valueOf instead

Change-Id: I5316b01a63490b44d4bcb6f0fe9a1a5d7b609560
Signed-off-by: Tom Pantelis <tompantelis@gmail.com>

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
index 903acc479c3b4f2a5e019dc5908f4f6b1254ba09..da72d9452ffdceea23382d3417c30b58f491de6d 160000 (submodule)
--- a/docs/submodules/sfc
+++ b/docs/submodules/sfc
@@ -1 +1 @@
-Subproject commit 903acc479c3b4f2a5e019dc5908f4f6b1254ba09
+Subproject commit da72d9452ffdceea23382d3417c30b58f491de6d