package/synergy: add SYNERGY_CPE_ID_VENDOR

cpe:2.3:a:symless:synergy is a valid CPE identifier for this package:

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

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/synergy/synergy.mk

@@ -8,6 +8,7 @@ SYNERGY_VERSION = 2.0.12-beta
 SYNERGY_SITE = $(call github,symless,synergy-core,v$(SYNERGY_VERSION))
 SYNERGY_LICENSE = GPL-2.0
 SYNERGY_LICENSE_FILES = LICENSE
+SYNERGY_CPE_ID_VENDOR = symless
 SYNERGY_DEPENDENCIES = xlib_libX11 xlib_libXtst
 
 # Avoid using buildroot commit hash inside cmake/Version.cmake