[nrf noup] Fixed minor style issues returned by code lint

Signed-off-by: Kamil Kasperczyk <kamil.kasperczyk@nordicsemi.no>

Author: kkasperczyk-no

scripts/tools/zap/generate.py

@@ -30,9 +30,11 @@
 
 from zap_execution import ZapTool
 
+
 def isWindows():
     return platform.system() == "Windows"
 
+
 # fcntl is not supported on widows platform due to lack of necessity of I/O control on file descriptor
 if not isWindows():
     import fcntl
@@ -343,7 +345,6 @@ def __enter__(self):
         self.lock_file = open(self.lock_file_path, 'wb')
         fcntl.lockf(self.lock_file, fcntl.LOCK_EX)
 
-
     def __exit__(self, *args):
         # fcntl is not supported on widows platform due to lack of necessity of I/O control on file descriptor
         if not self.lock_file or isWindows():