Split out scripts/code.py into scripts/code.py and scripts/data.py

This is to avoid unexpected script behavior even though data.py should
always return 0 bytes for littlefs. Maybe a check for this should be
added to CI?

scripts/code.py

@@ -15,7 +15,7 @@ import csv
 import collections as co
 
 
-OBJ_PATHS = ['*.o', 'bd/*.o']
+OBJ_PATHS = ['*.o']
 
 def collect(paths, **args):
     results = co.defaultdict(lambda: 0)
@@ -222,7 +222,7 @@ if __name__ == "__main__":
         help="Only show the total code size.")
     parser.add_argument('-q', '--quiet', action='store_true',
         help="Don't show anything, useful with -o.")
-    parser.add_argument('--type', default='tTrRdDbB',
+    parser.add_argument('--type', default='tTrRdD',
         help="Type of symbols to report, this uses the same single-character "
             "type-names emitted by nm. Defaults to %(default)r.")
     parser.add_argument('--nm-tool', default=['nm'], type=lambda x: x.split(),