Flash size wp7607

hi @jyijyi, Thanks for your help earlier. I was able to build <legate.cwe> and <system.wp76xx.update> file using make wp76xx command.
Also I was to add myCustom.adef file and build separately with command:
mkapp -t wp76xx apps/sample/myApp/myCustom.adef

Now, I am trying to add myCustom.adef to build with make wp76xx command, so that I can create <system.wp76xx.include.myCustom.update> file.
Is there a way to do it? Could you please advise which file I need to modify?

Thanks.