Fix dummy file upload response code fix

Change-Id: Ibc6c78a17b35a65dab4d225f47938b784cca6927
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/syslib/utils_os.robot b/syslib/utils_os.robot
index b5ff68b..02326ab 100755
--- a/syslib/utils_os.robot
+++ b/syslib/utils_os.robot
@@ -151,7 +151,7 @@
     Set To Dictionary  ${data}  headers  ${headers}
 
     ${resp}=  Post Request  openbmc  /upload/image  &{data}
-    Should Be Equal As Strings  ${resp.status_code}  ${HTTP_OK}
+    Should Be Equal As Strings  ${resp.status_code}  ${HTTP_BAD_REQUEST}
     ...  msg=Openbmc /upload/image failed.
 
     # Take SSH connection to BMC and switch to BMC connection to perform