package/elfutils: set ELFUTILS_CPE_ID_VALID

cpe:2.3:a:elfutils_project:elfutils is a valid CPE identifier for this
package:

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

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

package/elfutils/elfutils.mk

@@ -10,6 +10,7 @@ ELFUTILS_SITE = https://sourceware.org/elfutils/ftp/$(ELFUTILS_VERSION)
 ELFUTILS_INSTALL_STAGING = YES
 ELFUTILS_LICENSE = GPL-2.0+ or LGPL-3.0+ (library)
 ELFUTILS_LICENSE_FILES = COPYING COPYING-GPLV2 COPYING-LGPLV3
+ELFUTILS_CPE_ID_VALID = YES
 ELFUTILS_DEPENDENCIES = host-pkgconf zlib $(TARGET_NLS_DEPENDENCIES)
 HOST_ELFUTILS_DEPENDENCIES = host-pkgconf host-zlib host-bzip2 host-xz