pppoe: template: T2388: fix unexpected keyword argument
pppoe: template: T2388: fix unexpected keyword argument

Commit 2bf12b579e0 ("template: T2388: move mkdir/chmod/chown within render()")
passed an unexpected keyword to the render() function, it was simply
wrongly spelled.

vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x