ipatest: loginscreen: do not use hardcoded password

Use admin password obtained from local config instead of hardcoded
value, as the password may differ in different testing environments.

https://pagure.io/freeipa/issue/9226

Signed-off-by: Michal Polovka <mpolovka@redhat.com>
Reviewed-By: Erik Belko <ebelko@redhat.com>
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>

ipatests/test_webui/data_loginscreen.py

@@ -9,7 +9,6 @@ PASSWD_ITEST_USER = '12345678'
 PASSWD_ITEST_USER_NEW = '87654321'
 
 ROOT_PKEY = 'root'
-PASSWD_ADMIN = 'Secret.123'
 
 # used for add/delete fixture test user
 DATA_ITEST_USER = {

ipatests/test_webui/test_loginscreen.py

@@ -412,6 +412,6 @@ class TestLoginScreen(UI_driver):
         """
         self.load()
         assert self.login_screen_visible()
-        self.login(loginscreen.ROOT_PKEY, loginscreen.PASSWD_ADMIN)
+        self.login(loginscreen.ROOT_PKEY, self.config['ipa_password'])
 
         assert self.logged_in()