package/python-mypy-extensions: enable host package

This will be required for the upcoming python-mypy package.

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Arnout Vandecappelle <arnout@rnout.be>

package/python-mypy-extensions/python-mypy-extensions.mk

@@ -12,3 +12,4 @@ PYTHON_MYPY_EXTENSIONS_LICENSE = MIT
 PYTHON_MYPY_EXTENSIONS_LICENSE_FILES = LICENSE
 
 $(eval $(python-package))
+$(eval $(host-python-package))