OCPBUGS-48242bis: small addition to output example for 4.16

Author: lcavalle

modules/cnf-running-the-performance-creator-profile.adoc

@@ -73,6 +73,7 @@ Usage:
 
 Flags:
       --disable-ht                        Disable Hyperthreading
+      --enable-hardware-tuning            Enable setting maximum cpu frequencies
   -h, --help                              help for performance-profile-creator
       --info string                       Show cluster information; requires --must-gather-dir-path, ignore the other arguments. [Valid values: log, json] (default "log")
       --mcp-name string                   MCP name corresponding to the target machines (required)