Staging: speakup: Replace symbolic permission

Replace S_IRUGO by 0444 in module parameter declaration. 0444 is more
readable and matches the style used in other declarations nearby.

Problem found using checkpatch.
Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/speakup/speakup_acntsa.c

@@ -136,7 +136,7 @@ static int synth_probe(struct spk_synth *synth)
 }
 
 module_param_named(ser, synth_acntsa.ser, int, 0444);
-module_param_named(dev, synth_acntsa.dev_name, charp, S_IRUGO);
+module_param_named(dev, synth_acntsa.dev_name, charp, 0444);
 module_param_named(start, synth_acntsa.startup, short, 0444);
 
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");