Collated PEP8 fixes (#25293)

- Make PEP8 compliant

lib/ansible/module_utils/bigswitch_utils.py

@@ -25,9 +25,12 @@
 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 # USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
 import json
+
 from ansible.module_utils.urls import fetch_url
 
+
 class Response(object):
 
     def __init__(self, resp, info):