utils: raspberrypi: ctt: Fix pycodestyle E711 and E712

E711 comparison to None should be 'if cond is None:'
E711 comparison to None should be 'if cond is not None:'
E712 comparison to False should be 'if cond is False:' or 'if not cond:'
E712 comparison to True should be 'if cond is True:' or 'if cond:'

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>

utils/raspberrypi/ctt/ctt_ccm.py

@@ -64,7 +64,7 @@ def ccm(Cam, cal_cr_list, cal_cb_list):
     reformat alsc correction tables or set colour_cals to None if alsc is
     deactivated
     """
-    if cal_cr_list == None:
+    if cal_cr_list is None:
         colour_cals = None
     else:
         colour_cals = {}