python-versiontools: add host variant

It will be needed by python-json-schema-validator.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/python-versiontools/python-versiontools.mk

@@ -11,3 +11,4 @@ PYTHON_VERSIONTOOLS_SETUP_TYPE = setuptools
 PYTHON_VERSIONTOOLS_LICENSE = LGPL-3.0
 
 $(eval $(python-package))
+$(eval $(host-python-package))