ubox: update ubox to version 2015-11-22

This version fixes a potential uncontrolled format string problem. This
makes it possible to activate the format security check.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 47600

package/system/ubox/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ubox
-PKG_VERSION:=2015-07-14
+PKG_VERSION:=2015-11-22
 PKG_RELEASE=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=git://nbd.name/luci2/ubox.git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE_VERSION:=907d046c8929fb74e5a3502a9498198695e62ad8
+PKG_SOURCE_VERSION:=c086167a0154745c677f8730a336ea9cf7d71031
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
 CMAKE_INSTALL:=1
-PKG_CHECK_FORMAT_SECURITY:=0
 
 PKG_LICENSE:=GPL-2.0
 PKG_LICENSE_FILES:=