aha152x PCMCIA fix

From: Thomas Schlichter <thomas.schlichter@web.de>

the attached patch fixes a link error of the kernel module 'drivers/scsi/
pcmcia/aha152x_cs.ko' because of two module_init() and two module_exit() 
functions. Now the module links but I did not test it further...

drivers/scsi/aha152x.c

@@ -3914,5 +3914,7 @@ static Scsi_Host_Template aha152x_driver_template = {
 	.use_clustering			= DISABLE_CLUSTERING,
 };
 
+#ifndef PCMCIA
 module_init(aha152x_init);
 module_exit(aha152x_exit);
+#endif