[source] firewall3: update to latest git HEAD

[LEDE Commits]

blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/?p=source.git;a=commitdiff;h=74766f4c4fd64e6297c4f8ad2eca8afe3e44988d

commit 74766f4c4fd64e6297c4f8ad2eca8afe3e44988d
Author: John Crispin <john at phrozen.org>
AuthorDate: Sun Jul 24 06:23:26 2016 +0200

    firewall3: update to latest git HEAD
    
    Signed-off-by: John Crispin <john at phrozen.org>
---
 package/network/config/firewall/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package/network/config/firewall/Makefile b/package/network/config/firewall/Makefile
index c379219..6e024af 100644
--- a/package/network/config/firewall/Makefile
+++ b/package/network/config/firewall/Makefile
@@ -9,13 +9,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=firewall
-PKG_VERSION:=2016-05-02
+PKG_VERSION:=2016-07-28
 PKG_RELEASE:=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(LEDE_GIT)/project/firewall3.git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE_VERSION:=6cccf1ba7f0c3eb34ef4a7adc6af501376bfa875
+PKG_SOURCE_VERSION:=47b23946cb2d51c486cd01596744955f850e2060
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
 PKG_MAINTAINER:=Jo-Philipp Wich <jo at mein.io>
 PKG_LICENSE:=ISC