Fix code typo in the repository

Changes:
    - Corrected spelling mistake in the repository

Tested:
    - NA

Change-Id: Ic721bbb2efc0f9f5a1895e3f5994fdb38fe310cd
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/redfish/update_service/test_redfish_bmc_code_update.robot b/redfish/update_service/test_redfish_bmc_code_update.robot
index 7dd0f73..c072d4b 100644
--- a/redfish/update_service/test_redfish_bmc_code_update.robot
+++ b/redfish/update_service/test_redfish_bmc_code_update.robot
@@ -161,7 +161,7 @@
     # Flash latest firmware using redfish.
     Redfish Update Firmware  OnReset
 
-    # verify modified admin credentails on latest image.
+    # verify modified admin credentials on latest image.
     Redfish.Login  admin_user  0penBmc123
     Redfish.Logout