ubus: update to the latest version, fixes a memory leak on client disconnect

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48505

package/system/ubus/Makefile

@@ -1,13 +1,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ubus
-PKG_VERSION:=2016-01-13
+PKG_VERSION:=2016-01-26
 PKG_RELEASE=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(OPENWRT_GIT)/project/ubus.git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE_VERSION:=1d2b3bbdbefa4901e34506f86f4b4c4412dbb555
+PKG_SOURCE_VERSION:=619f3a160de4f417226b69039538882787b3811c
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
 PKG_MIRROR_MD5SUM:=
 CMAKE_INSTALL:=1