staging:rtl8723au:rtw_ap:space prohibited between function name & '('

This patch removes the warning "space prohibited between
function name and open parenthesis"given by checkpatch.pl

Signed-off-by: Joglekar Tejas <tjogleka@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>