package/python-tornado: add CPE variables

cpe:2.3:a:tornadoweb:tornado is a valid CPE identifier for this package:

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

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

package/python-tornado/python-tornado.mk

@@ -9,6 +9,8 @@ PYTHON_TORNADO_SOURCE = tornado-$(PYTHON_TORNADO_VERSION).tar.gz
 PYTHON_TORNADO_SITE = https://files.pythonhosted.org/packages/95/84/119a46d494f008969bf0c775cb2c6b3579d3c4cc1bb1b41a022aa93ee242
 PYTHON_TORNADO_LICENSE = Apache-2.0
 PYTHON_TORNADO_LICENSE_FILES = LICENSE
+PYTHON_TORNADO_CPE_ID_VENDOR = tornadoweb
+PYTHON_TORNADO_CPE_ID_PRODUCT = tornado
 PYTHON_TORNADO_SETUP_TYPE = setuptools
 
 $(eval $(python-package))