TT#56376 selenium: edit invalid fallback element which caused issues

controller_ncos.t:
- edited one fallback element to something thats better detectable for
selenium (edit button for setting adm_cf_ncos)

Change-Id: Iaefdb6cc46bf8eb8b0f2078a5562265af7110792

t/selenium/controller_ncos.t

@@ -214,7 +214,7 @@ $d->find_element("Call Blockings", 'link_text')->click();
 $d->scroll_to_element($d->find_element('//*[@id="preference_groups"]//div//a[contains(text(),"Call Blockings")]'));
 
 diag("Edit setting 'NCOS'");
-$d->move_and_click('//table//tr//td[contains(text(), "ncos")]/../td//a[contains(text(), "Edit")]', 'xpath', '//*[@id="preference_groups"]//div//a[contains(text(),"Call Blockings")]');
+$d->move_and_click('//table//tr//td[contains(text(), "ncos")]/../td//a[contains(text(), "Edit")]', 'xpath', '//table//tr//td[contains(text(), "adm_cf_ncos")]/../td//a[contains(text(), "Edit")]');
 ok($d->find_element_by_xpath('//*[@id="mod_edit"]/div/h3[contains(text(), "Edit Preference")]'), "Edit Window has been opened");
 ok($d->find_element_by_xpath('//*[@id="ncos"]/option[contains(text(), "' . $ncosname . '")]'), "Element was found");
 $d->find_element('//*[@id="ncos"]/option[contains(text(), "' . $ncosname . '")]')->click();