package/spice: set SPICE_CPE_ID_VALID

cpe:2.3:a:spice_project:spice is a valid CPE identifier for this
package:

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

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

package/spice/spice.mk

@@ -9,6 +9,7 @@ SPICE_SOURCE = spice-$(SPICE_VERSION).tar.bz2
 SPICE_SITE = http://www.spice-space.org/download/releases/spice-server
 SPICE_LICENSE = LGPL-2.1+
 SPICE_LICENSE_FILES = COPYING
+SPICE_CPE_ID_VALID = YES
 SPICE_INSTALL_STAGING = YES
 SPICE_DEPENDENCIES = \
 	host-pkgconf \