libxml2: Fix CVE-2018-9251 and CVE-2018-14567

Also added the CPE ID.

Taken from Fedora.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/libxml2/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libxml2
 PKG_VERSION:=2.9.8
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://xmlsoft.org/sources/
@@ -17,6 +17,7 @@ PKG_HASH:=0b74e51595654f958148759cfef0993114ddccccbb6f31aee018f3558e8e2732
 
 PKG_LICENSE:=MIT
 PKG_LICENSE_FILES:=COPYING
+PKG_CPE_ID:=cpe:/a:xmlsoft:libxml2
 
 PKG_MAINTAINER:=Michael Heimpold <mhei@heimpold.de>