python-py: add dependency on host-python-setuptools-scm

Fixes:
http://autobuild.buildroot.net/results/cde7ea2fc256ff9f1f6b8d887b26543b998d7186

Signed-off-by: Asaf Kahlon <asafka7@gmail.com>
Reviewed-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/python-py/python-py.mk

@@ -7,6 +7,7 @@
 PYTHON_PY_VERSION = 1.7.0
 PYTHON_PY_SOURCE = py-$(PYTHON_PY_VERSION).tar.gz
 PYTHON_PY_SITE = https://files.pythonhosted.org/packages/c7/fa/eb6dd513d9eb13436e110aaeef9a1703437a8efa466ce6bb2ff1d9217ac7
+PYTHON_PY_DEPENDENCIES = host-python-setuptools-scm
 PYTHON_PY_SETUP_TYPE = setuptools
 PYTHON_PY_LICENSE = MIT
 PYTHON_PY_LICENSE_FILES = LICENSE