Added vmi multiple interface testcases

     -Configure_VMI_First_Interface_In_Static_And_Second_In_Dynamic_And_Verify
     -Configure_VMI_First_Interface_In_Dynamic_And_Second_In_Static_And_Verify
     -copied Variables from vmi suite to library

Change-Id: Ibf86bb07baae38776408ba873c5e95460297d615
Signed-off-by: shrsuman123 <shrsuman@in.ibm.com>
diff --git a/lib/external_intf/vmi_utils.robot b/lib/external_intf/vmi_utils.robot
index e3f400a..fddafd7 100644
--- a/lib/external_intf/vmi_utils.robot
+++ b/lib/external_intf/vmi_utils.robot
@@ -11,6 +11,12 @@
 
 *** Variables ***
 
+&{DHCP_ENABLED}           DHCPEnabled=${True}
+&{DHCP_DISABLED}          DHCPEnabled=${False}
+
+&{ENABLE_DHCP}            DHCPv4=&{DHCP_ENABLED}
+&{DISABLE_DHCP}           DHCPv4=&{DHCP_DISABLED}
+
 ${wait_time}              10s
 
 *** Keywords ***