package/dhcpcd: add DHCPCD_CPE_ID_VENDOR

cpe:2.3:a:dhcpcd_project:dhcpcd is a valid CPE identifier for this
package:

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

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/dhcpcd/dhcpcd.mk

@@ -10,6 +10,7 @@ DHCPCD_SITE = http://roy.marples.name/downloads/dhcpcd
 DHCPCD_DEPENDENCIES = host-pkgconf
 DHCPCD_LICENSE = BSD-2-Clause
 DHCPCD_LICENSE_FILES = LICENSE
+DHCPCD_CPE_ID_VENDOR = dhcpcd_project
 
 DHCPCD_CONFIG_OPTS = \
 	--libexecdir=/lib/dhcpcd \