Added delay for sensor page to load completely.

Changes:
     - Add a timeout of 15 minutes for progress bar to complete on sensor page.
Tested: -
     - Successfully ran this from /gui/gui_test/hardware_status_menu/test_sensors_sub_menu.robot

Change-Id: I11f25e4973394f14a0ab755d46ca9366e04b4b58
Signed-off-by: rramyasr-in <rramyasr@in.ibm.com>
diff --git a/gui/gui_test/hardware_status_menu/test_sensors_sub_menu.robot b/gui/gui_test/hardware_status_menu/test_sensors_sub_menu.robot
index 4654378..9d1b1a2 100644
--- a/gui/gui_test/hardware_status_menu/test_sensors_sub_menu.robot
+++ b/gui/gui_test/hardware_status_menu/test_sensors_sub_menu.robot
@@ -129,9 +129,9 @@
     Click Element  ${xpath_hardware_status_menu}
     Click Element  ${xpath_sensor_sub_menu}
     Wait Until Keyword Succeeds  30 sec  5 sec  Location Should Contain  sensors
-    Wait Until Element Is Not Visible   ${xpath_page_loading_progress_bar}  timeout=30
-    # Added delay for sensor page to load completely.
-    Sleep  100s
+
+    # Added delay for sensor page to load completely by waiting for disapperance of progress bar.
+    Wait Until Element Is Not Visible   ${xpath_page_loading_progress_bar}  timeout=15min
 
 
 Clean Up Filter Values