package/ed: add ED_CPE_ID_VENDOR

cpe:2.3:a:gnu:ed is a valid CPE identifier for this package:

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

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Reviewed-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/ed/ed.mk

@@ -9,6 +9,7 @@ ED_SITE = $(BR2_GNU_MIRROR)/ed
 ED_SOURCE = ed-$(ED_VERSION).tar.lz
 ED_LICENSE = GPL-3.0+
 ED_LICENSE_FILES = COPYING
+ED_CPE_ID_VENDOR = gnu
 
 define ED_CONFIGURE_CMDS
 	(cd $(@D); \