Remove use of deprecated rprint functions

For each of the rprint functions, there is a corresponding gen_print function
that can be used instead.

Change-Id: I89c6e0b63cac7aee92da7dc7945e413001287967
Signed-off-by: Michael Walsh <micwalsh@us.ibm.com>
diff --git a/network/test_host_network_interfaces.robot b/network/test_host_network_interfaces.robot
index 8045de2..715cd2a 100644
--- a/network/test_host_network_interfaces.robot
+++ b/network/test_host_network_interfaces.robot
@@ -21,7 +21,7 @@
     [Documentation]  Verify the states of all system interfaces.
     [Tags]  Verify_Network_Interfaces
 
-    Rprintn
+    Printn
     REST Power On
     @{interface_names}=  Get OS Network Interface Names
     :FOR  ${interface_name}  IN  @{interface_names}