Staging: comedi: apci3200: fix test of ui_DelayTime range in i_APCI3200_CommandTestAnalogInput()

For ui_DelayTime to be less than 1 and greater than 1023 is logically
impossible.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>