extract-utils: Don't make extract-factory mutually exclusive

Change-Id: I8f3211e64d2de063b5c04a94826a506ea273733c

Author: mikeNG

Diff for: extract_utils/args.py

@@ -33,11 +33,6 @@
     action='store_true',
     help='only extract target module',
 )
-group.add_argument(
-    '--extract-factory',
-    action='store_true',
-    help='extract factory files',
-)
 # TODO: --only-firmware
 
 parser.add_argument(
@@ -75,6 +70,11 @@
     action='store_true',
     help='generate legacy makefiles',
 )
+parser.add_argument(
+    '--extract-factory',
+    action='store_true',
+    help='extract factory files',
+)
 parser.add_argument(
     '--keep-dump',
     action='store_true',