staging: comedi: das1800: fix das-1801st-da boardinfo

The "da" type boards all have 4 analog outputs. Fix the boardinfo
for the das-1801st-da.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/das1800.c

@@ -324,7 +324,7 @@ static const struct das1800_board das1800_boards[] = {
 	 .qram_len = 256,
 	 .common = 1,
 	 .do_n_chan = 4,
-	 .ao_ability = 0,
+	 .ao_ability = 1,
 	 .ao_n_chan = 4,
 	 .range_ai = &range_ai_das1801,
 	 },