staging: ft1000-usb: remove space between function name and open paren in ft1000_download.c

fixed checkpatch.pl warning: space prohibited between function name and
open parenthesis '('

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>