Update powervault_me4_vars.yml

Signed-off-by: Shubhangi-dell <shubhangi_srivastava@dell.com>

control_plane/input_params/powervault_me4_vars.yml

@@ -95,6 +95,8 @@ powervault_me4_pool: "a"
 
 # Specify the nic of the server with which Powervault is connected.
 # Make sure nfs server also has 3 nics (for internet, OS provision and powervault connection)
-# Default value: "em1".
+# The nic should be according to the provisioned OS on nfs server.
+# Example: em1 for CentOS-7, eno1 for RockyOS etc.
+# Default value: "eno1"
 # Required field
-powervault_me4_server_nic: "em1"
+powervault_me4_server_nic: "eno1"