[SCSI]: Fix bugs in sym2 hotplug conversion.

1) Make sym2_template.module get setup properly.  It was
   the scsi_module.c code taking care of this for us previously.
2) Zero out on-stack structures, in particular sym_dev not being
   zeroed out was causing sometimes-boots-sometimes-doesnt problems
   for me on sparc64 with sym2 non-modular.

drivers/scsi/sym53c8xx_2/sym_glue.c

@@ -2732,6 +2732,7 @@ MODULE_LICENSE("Dual BSD/GPL");
  * Driver host template.
  */
 static struct scsi_host_template sym2_template = {
+	.module			= THIS_MODULE,
 	.name			= "sym53c8xx",
 #if 0
 	.detect			= sym53c8xx_detect,
@@ -2832,6 +2833,9 @@ static int __devinit sym2_probe(struct pci_dev *pdev,
 	sym_device sym_dev;
 	sym_nvram nvram;
 
+	memset(&sym_dev, 0, sizeof(sym_dev));
+	memset(&nvram, 0, sizeof(nvram));
+
 	sym_dev.host_id = SYM_SETUP_HOST_ID;
 	if (sym53c8xx_pci_init(pdev, &sym_dev))
 		return -ENODEV;