DCMI: Modified script in ipmi/dcmi/test_dcmi_asset_tag.robot

Changes:
  - Added fail_on_err=0 in Set_Asset_Tag_With_Invalid_String_Length Testcase

Tested:
  - Ran ipmi/dcmi/test_dcmi_asset_tag.robot

Change-Id: Ifd13a96defe2ffe744f6dcfcfb6a6a39635f4739
Signed-off-by: Ishwarya Mathi M  <ishwaryamm@ami.com>
diff --git a/ipmi/dcmi/test_dcmi_asset_tag.robot b/ipmi/dcmi/test_dcmi_asset_tag.robot
index d9cbcd2..4845106 100644
--- a/ipmi/dcmi/test_dcmi_asset_tag.robot
+++ b/ipmi/dcmi/test_dcmi_asset_tag.robot
@@ -32,8 +32,8 @@
     # Any string more than 63 character is invalid for asset tag.
     ${random_string}=  Generate Random String  64
 
-    ${resp}=  Run Keyword And Expect Error  *  Run IPMI Standard Command
-    ...  dcmi set_asset_tag ${random_string}
+    ${resp}=  Run IPMI Standard Command
+    ...  dcmi set_asset_tag ${random_string}  fail_on_err=0
     Should Contain  ${resp}  Parameter out of range  ignore_case=True