package/python-marshmallow: add CPE variables

cpe:2.3:a:marshmallow_project:marshmallow is a valid CPE identifier for
this package:

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

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

package/python-marshmallow/python-marshmallow.mk

@@ -10,5 +10,7 @@ PYTHON_MARSHMALLOW_SITE = https://files.pythonhosted.org/packages/5e/59/dd465e5a
 PYTHON_MARSHMALLOW_SETUP_TYPE = setuptools
 PYTHON_MARSHMALLOW_LICENSE = MIT
 PYTHON_MARSHMALLOW_LICENSE_FILES = LICENSE
+PYTHON_MARSHMALLOW_CPE_ID_VENDOR = marshmallow_project
+PYTHON_MARSHMALLOW_CPE_ID_PRODUCT = marshmallow
 
 $(eval $(python-package))