package/x11r7/xlib_libXrender: add CPE variables

cpe:2.3:a:x.org:libxrender is a valid CPE identifier for this package:

  https://nvd.nist.gov/products/cpe/search/results?namingFormat=2.3&keyword=cpe%3A2.3%3Aa%3Ax.org%3Alibxrender

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/x11r7/xlib_libXrender/xlib_libXrender.mk

@@ -9,6 +9,8 @@ XLIB_LIBXRENDER_SOURCE = libXrender-$(XLIB_LIBXRENDER_VERSION).tar.bz2
 XLIB_LIBXRENDER_SITE = http://xorg.freedesktop.org/releases/individual/lib
 XLIB_LIBXRENDER_LICENSE = MIT
 XLIB_LIBXRENDER_LICENSE_FILES = COPYING
+XLIB_LIBXRENDER_CPE_ID_VENDOR = x.org
+XLIB_LIBXRENDER_CPE_ID_PRODUCT = libxrender
 XLIB_LIBXRENDER_INSTALL_STAGING = YES
 XLIB_LIBXRENDER_DEPENDENCIES = xlib_libX11 xorgproto
 HOST_XLIB_LIBXRENDER_DEPENDENCIES = \