pcmcia: avoid messages on module (un)loading

printk() statements on module load or unload are frowned upon. Also,
add a few __init or __exit declarations.

Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

drivers/isdn/hisax/avma1_cs.c

@@ -220,7 +220,7 @@ static struct pcmcia_driver avma1cs_driver = {
 
 static int __init init_avma1_cs(void)
 {
-	return(pcmcia_register_driver(&avma1cs_driver));
+	return pcmcia_register_driver(&avma1cs_driver);
 }
 
 static void __exit exit_avma1_cs(void)