Automation fix for vmi menu

Changes:
    - Modified "Get VMI Network Interface Details" keyword Tested:

Tested:
    - Ran and Tested on BMC Environment

Change-Id: Ic3e88fdc9f462a75b337de8e6d19f9b867b1f7e7
Signed-off-by: Megha G N <Megha.G.N@ibm.com>
diff --git a/lib/external_intf/vmi_utils.robot b/lib/external_intf/vmi_utils.robot
index 6d53a6e..03a504d 100644
--- a/lib/external_intf/vmi_utils.robot
+++ b/lib/external_intf/vmi_utils.robot
@@ -146,7 +146,7 @@
     ${ip_exists}=  Set Variable If  ${ip_resp["IPv4Addresses"]} == @{empty}  ${False}  ${True}
     ${static_exists}=  Set Variable If  ${ip_resp["IPv4StaticAddresses"]} == @{empty}  ${False}  ${True}
 
-    ${vmi_ip}=  Set Variable If   ${ip_exists} == ${True}
+    ${vmi_ip}=  IF  ${ip_exists} == ${True}
     ...  Create Dictionary  DHCPv4=${${ip_resp["DHCPv4"]["DHCPEnabled"]}}  Id=${ip_resp["Id"]}
     ...  Description=${ip_resp["Description"]}  IPv4_Address=${ip_resp["IPv4Addresses"][0]["Address"]}
     ...  IPv4_AddressOrigin=${ip_resp["IPv4Addresses"][0]["AddressOrigin"]}  Name=${ip_resp["Name"]}