Fix IPMI lan interface count loop

Change-Id: I60c154d4bf78d507bc975d7edd8beeb92d023a59
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/ipmi/test_ipmi_network_verificaton.robot b/ipmi/test_ipmi_network_verificaton.robot
index 0285d50..91ec890 100644
--- a/ipmi/test_ipmi_network_verificaton.robot
+++ b/ipmi/test_ipmi_network_verificaton.robot
@@ -51,6 +51,9 @@
     [Tags]  Test_Valid_IPMI_Channels_Supported
 
     ${channel_count}=  Get Physical Network Interface Count
+    Should Be True  ${channel_count} > 0
+    ...  msg=IPMI Lan channel support expected > 0 but found ${channel_count}
+    ${channel_count}=  Evaluate  ${channel_count} + 1
 
     # Note: IPMI network channel logically starts from 1.
     FOR  ${channel_number}  IN RANGE  1  ${channel_count}