Redundance eth0/eth1 network interfaces changes

Changes:
     - Introduce OPENBMC_HOST_ETH0 and OPENBMC_HOST_ETH1
     - Assign OPENBMC_HOST_ETH0 default with OPENBMC_HOST
       and OPENBMC_HOST_ETH1 with EMPTY
     - Modify all the code which involves using both eth0
       and eth1
     - User will need to key in as
            -v OPENBMC_HOST_ETH1:xx.xx.xx.xx
       as oppose to earlier
            -v OPENBMC_HOST_1:xx.xx.xx.xx

Tested:
    - Sanity dry-run robot test with changes from sandbox

Change-Id: Iedeff2cfa252637bcf202979772ee1c5c90066b5
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/redfish/managers/test_multiple_interfaces_dhcp.robot b/redfish/managers/test_multiple_interfaces_dhcp.robot
index 479f5a7..b617405 100644
--- a/redfish/managers/test_multiple_interfaces_dhcp.robot
+++ b/redfish/managers/test_multiple_interfaces_dhcp.robot
@@ -208,7 +208,7 @@
     [Documentation]  Restore the configuration to Both Static Network
 
     Run Keyword If  '${CHANNEL_NUMBER}' == '${1}'  Add IP Address  ${OPENBMC_HOST}  ${eth0_subnet_mask}  ${eth0_gateway}
-    ...  ELSE IF  '${CHANNEL_NUMBER}' == '{2}'  Add IP Address  ${OPENBMC_HOST_1}  ${eth1_subnet_mask}  ${eth1_gateway}
+    ...  ELSE IF  '${CHANNEL_NUMBER}' == '{2}'  Add IP Address  ${OPENBMC_HOST_ETH1}  ${eth1_subnet_mask}  ${eth1_gateway}
 
 Get Network Configuration Using Channel Number
     [Documentation]  Get ethernet interface.
@@ -233,7 +233,7 @@
     # Get the configuration of eth1
     ${network_configurations}=  Get Network Configuration Using Channel Number  ${2}
     FOR  ${network_configuration}  IN  @{network_configurations}
-      Run Keyword If  '${network_configuration['Address']}' == '${OPENBMC_HOST_1}'
+      Run Keyword If  '${network_configuration['Address']}' == '${OPENBMC_HOST_ETH1}'
       ...  Run Keywords  Set Suite Variable  ${eth1_subnet_mask}  ${network_configuration['SubnetMask']}
       ...  AND  Set Suite Variable  ${eth1_gateway}  ${network_configuration['Gateway']}
       ...  AND  Exit For Loop