Refactor site_servo, site_vblock and site_gpio module into client/cros package(directory).

client/site_tests/hardware_EepromWriteProtect/hardware_EepromWriteProtect.py

 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import os
 
 from autotest_lib.client.bin import factory, test, utils
 from autotest_lib.client.common_lib import error
 from autotest_lib.client.common_lib import flashrom_util
-from autotest_lib.client.common_lib import site_gpio
+from autotest_lib.client.cros import gpio
 
 
 class hardware_EepromWriteProtect(test.test):
     """
     Autotest for EEPROM Write Protection status
 
     WARNING: DO NOT INTERRUPT THIS TEST OTHERWISE YOUR FLASHROM MAY BE CORRUPTED
 
     NOTE: This test only verifies write-protection status.
     If you want to enable write protection, run factory_EnableWriteProtect.
     """
     version = 2
     verbose = True
 
     def setup(self):
         """ autotest setup procedure """
         self.flashrom = flashrom_util.flashrom_util(verbose=self.verbose)
-        self.gpio = site_gpio.Gpio(error.TestError)
+        self.gpio = gpio.Gpio(error.TestError)
 
     def check_gpio_write_protection(self):
         try:
             status_val = self.gpio.read('write_protect')
         except:
             raise error.TestFail('Cannot read GPIO Write Protection status.')
         if status_val != 1:
             raise error.TestFail('GPIO Write Protection is not enabled')
 
     def check_write_protection(self, layout_map, write_list, expected,
@@ skipping 165 matching lines @@
                             (conf['name'], ','.join(rw_list)))
             self.check_write_protection(layout_map, rw_list, True, original)
 
         # restore default selection.
         if not self.flashrom.select_target(system_default_selection):
             raise error.TestError('ERROR: cannot restore target.')
 
 
 if __name__ == "__main__":
     print "please run this program with autotest."