Added a wait until hostname input box is available

  Testcase fixed:
    - Verify Hostname Text Configuration

Change-Id: Ice539776c9eccb8b72c53b82b3edc54abbc66dea
Signed-off-by: Anves Kumar rayankula <anvesr77@in.ibm.com>
diff --git a/gui/gui_test/server_config/test_obmc_gui_network_settings.robot b/gui/gui_test/server_config/test_obmc_gui_network_settings.robot
index 32dc85e..cbb87c7 100644
--- a/gui/gui_test/server_config/test_obmc_gui_network_settings.robot
+++ b/gui/gui_test/server_config/test_obmc_gui_network_settings.robot
@@ -67,11 +67,10 @@
     ...  sub-menu.
     [Tags]  Verify_Hostname_Text_Configuration
 
+    Wait Until Element Is Enabled  ${xpath_hostname_input}
     Input Text  ${xpath_hostname_input}  witherspoon1
     Click Button  ${xpath_network_save_settings}
     Wait Until Page Contains Element  ${xpath_setting_success}  timeout=10
-    Element Should Be Disabled  ${xpath_network_save_settings}
-    Click Element  ${xpath_select_refresh_button}
     Wait Until Keyword Succeeds  15 sec  5 sec  Textfield Should Contain  ${xpath_hostname_input}
     ...  witherspoon1
 
@@ -164,7 +163,6 @@
     Wait Until Keyword Succeeds  30 sec  10 sec  Location Should Contain  network-settings
 
 
-
 Configure Invalid Network Address And Verify
     [Documentation]  Configure invalid network address And verify.
     [Arguments]  ${locator}  ${invalid_address}