Automation fix for VMI certificate

Changes:
    - Modified "Suite Setup Execution" keyword

Tested:
    - Ran successfully test_vmi.robot
    - Ran successfully test_vmicert_management.robot

Change-Id: I8caee1ba6407b70c22acfd9c49533851c1f88b31
Signed-off-by: Megha G N <Megha.G.N@ibm.com>
diff --git a/openpower/ext_interfaces/test_vmi.robot b/openpower/ext_interfaces/test_vmi.robot
index b1a0092..40ccb8a 100644
--- a/openpower/ext_interfaces/test_vmi.robot
+++ b/openpower/ext_interfaces/test_vmi.robot
@@ -477,6 +477,9 @@
     [Documentation]  Do test setup execution task.
 
     Redfish.Login
+
+    Redfish Power Off
+    Set BIOS Attribute  pvm_hmc_managed  Enabled
     Redfish Power On
 
     # Check whether OS is up and working fine.
diff --git a/openpower/ext_interfaces/test_vmicert_management.robot b/openpower/ext_interfaces/test_vmicert_management.robot
index 412aaf8..80b30e5 100644
--- a/openpower/ext_interfaces/test_vmicert_management.robot
+++ b/openpower/ext_interfaces/test_vmicert_management.robot
@@ -742,6 +742,10 @@
     Remove Files  *.csr  *.key  *.cert
     # Create different user accounts.
     Redfish.Login
+
+    Redfish Power Off
+    Set BIOS Attribute  pvm_hmc_managed  Enabled
+
     Redfish Power On
     Create Users With Different Roles  users=${USERS}  force=${True}