setter: fix setter bootpart flag

recipes-iqrf/iqrf-gateway-setter/files/iqrf-gateway-setter.py

@@ -309,7 +309,7 @@ def touch(path):
 
     :param name: Path
     :type name: str
-    """
+    """    
     with open(path, 'a'):
         os.utime(path, None)
 
@@ -393,7 +393,9 @@ def main():
     # copy default cfg to enable restore function
     backup_configuration()
 
-    # create flag, do not run again
+    # create flag, not to run again
+    if not os.path.isdir("/data/setter"):
+        os.makedirs("/data/setter")
     touch("/data/setter/bootpart")
 
     # disable wlan0 completely, only for certification if needed, user can enable wifi on its own by webapp