[SCSI] ipr: change endian swap key to match hardware spec change

The value used to change the endian representation on the new adapters has
changed.  This patch updates that value.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

drivers/scsi/ipr.h

@@ -1257,7 +1257,7 @@ struct ipr_interrupt_offsets {
 	unsigned long dump_addr_reg;
 	unsigned long dump_data_reg;
 
-#define IPR_ENDIAN_SWAP_KEY		0x000C0C00
+#define IPR_ENDIAN_SWAP_KEY		0x00080800
 	unsigned long endian_swap_reg;
 };