package/x11r7/xserver_xorg-server: add CPE variables

cpe:2.3:a:x.org:xorg-server is a valid CPE identifier for this package:

  https://nvd.nist.gov/products/cpe/detail/79A86C02-31A5-4F25-8CA6-7C4A8CD92B7B

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit b80705800a5a4f5dfd1a1edccca001a3a0a4ef3a)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/x11r7/xserver_xorg-server/xserver_xorg-server.mk

@@ -9,6 +9,8 @@ XSERVER_XORG_SERVER_SOURCE = xorg-server-$(XSERVER_XORG_SERVER_VERSION).tar.gz
 XSERVER_XORG_SERVER_SITE = https://xorg.freedesktop.org/archive/individual/xserver
 XSERVER_XORG_SERVER_LICENSE = MIT
 XSERVER_XORG_SERVER_LICENSE_FILES = COPYING
+XSERVER_XORG_SERVER_CPE_ID_VENDOR = x.org
+XSERVER_XORG_SERVER_CPE_ID_PRODUCT = xorg-server
 XSERVER_XORG_SERVER_SELINUX_MODULES = xdg xserver
 XSERVER_XORG_SERVER_INSTALL_STAGING = YES