staging: ft1000_dnld.c:code indent should use tabs where possible

This patch fixes the following checkpatch.pl issue in
ft1000/ft1000-pcmcia/ft1000_dnld.c
ERROR: code indent should use tabs where possible
Signed-off-by: Quentin Lee <lee.rhapsody@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>