scripts: python3: convert iterables to lists

Converted return value of items() keys() and values() to
lists when dictionary is modified in the loop and when
the result is added to the list.

(From OE-Core rev: 874a269eb1d70060c2f3b3f8b70800e2aea789f4)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/bitbake-whatchanged

@@ -120,7 +120,7 @@ def print_added(d_new = None, d_old = None):
     Print the newly added tasks
     """
     added = {}
-    for k in d_new.keys():
+    for k in list(d_new.keys()):
         if k not in d_old:
             # Add the new one to added dict, and remove it from
             # d_new, so the remaining ones are the changed ones
@@ -155,7 +155,7 @@ def print_vrchanged(d_new = None, d_old = None, vr = None):
     """
     pvchanged = {}
     counter = 0
-    for k in d_new.keys():
+    for k in list(d_new.keys()):
         if d_new.get(k).get(vr) != d_old.get(k).get(vr):
             counter += 1
             pn, task = split_pntask(k)
@@ -279,7 +279,7 @@ Note:
 
         # Remove the same one from both stamps.
         cnt_unchanged = 0
-        for k in new_dict.keys():
+        for k in list(new_dict.keys()):
             if k in old_dict:
                 cnt_unchanged += 1
                 del(new_dict[k])