package/sox: add CPE variables

cpe:2.3:a:sound_exchange_project:sound_exchange is a valid CPE
identifier for this package:

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

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

package/sox/sox.mk

@@ -10,6 +10,8 @@ SOX_SOURCE = sox-$(SOX_VERSION).tar.bz2
 SOX_DEPENDENCIES = host-pkgconf
 SOX_LICENSE = GPL-2.0+ (sox binary), LGPL-2.1+ (libraries)
 SOX_LICENSE_FILES = LICENSE.GPL LICENSE.LGPL
+SOX_CPE_ID_VENDOR = sound_exchange_project
+SOX_CPE_ID_PRODUCT = sound_exchange
 
 SOX_CONF_OPTS = \
 	--with-distro="Buildroot" \