Extend python3-setuptools to nativesdk because nativesdk-python3-pip needs
it.
Also, adjust RDEPENDS variable setting to keep the runtime dependencies
for nativesdk package the same with the target one. The native package and
the target package's dependencies remain the same as before.
Signed-off-by: Chen Qi <Qi.Chen@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Martin Kelly <mkelly@xevo.com> Signed-off-by: Armin Kuster <akuster808@gmail.com>
