Fixed variable not found issue

Change-Id: I5dc1a77419a6ed3363e0def43b2c8fc705e55416
Signed-off-by: Anves Kumar rayankula <anvesr77@in.ibm.com>
diff --git a/openpower/ext_interfaces/test_vmi.robot b/openpower/ext_interfaces/test_vmi.robot
index 4a84311..2f33c23 100644
--- a/openpower/ext_interfaces/test_vmi.robot
+++ b/openpower/ext_interfaces/test_vmi.robot
@@ -563,10 +563,10 @@
     [Documentation]  Switch VMI IPv4 origin and verify details.
 
     ${dhcp_mode_before}=  Get Immediate Child Parameter From VMI Network Interface  DHCPEnabled
-    ${dhcp_enabled}=  Set Variable If  ${curr_mode} == ${False}  ${True}  ${False}
+    ${dhcp_enabled}=  Set Variable If  ${dhcp_mode_before} == ${False}  ${True}  ${False}
 
     ${default}=  Set Variable  0.0.0.0
-    ${origin}=  Set Variable If  ${curr_mode} == ${False}  DHCP  Static
+    ${origin}=  Set Variable If  ${dhcp_mode_before} == ${False}  DHCP  Static
     Set VMI IPv4 Origin  ${dhcp_enabled}  ${HTTP_ACCEPTED}
 
     ${dhcp_mode_after}=  Get Immediate Child Parameter From VMI Network Interface  DHCPEnabled