package/valijson: set VALIJSON_CPE_ID_VALID

cpe:2.3:a:valijson_project:valijson is a valid CPE identifier for this
package:

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

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

package/valijson/valijson.mk

@@ -8,6 +8,7 @@ VALIJSON_VERSION = 0.3
 VALIJSON_SITE = $(call github,tristanpenman,valijson,v$(VALIJSON_VERSION))
 VALIJSON_LICENSE = BSD-2-Clause
 VALIJSON_LICENSE_FILES = LICENSE
+VALIJSON_CPE_ID_VALID = YES
 VALIJSON_INSTALL_STAGING = YES
 VALIJSON_INSTALL_TARGET = NO
 VALIJSON_DEPENDENCIES = boost