[libata] DocBook minor updates, fixes

Update copyright year, fix minor stuff 'make xmldocs' complains about.
Signed-off-by: Jeff Garzik <jeff@garzik.org>

Documentation/DocBook/libata.tmpl

@@ -14,7 +14,7 @@
   </authorgroup>
 
   <copyright>
-   <year>2003-2005</year>
+   <year>2003-2006</year>
    <holder>Jeff Garzik</holder>
   </copyright>
 

drivers/ata/libata-core.c

@@ -5741,7 +5741,7 @@ void ata_host_remove(struct ata_host *host)
 
 /**
  *	ata_scsi_release - SCSI layer callback hook for host unload
- *	@host: libata host to be unloaded
+ *	@shost: libata host to be unloaded
  *
  *	Performs all duties necessary to shut down a libata port...
  *	Kill port kthread, disable port, and release resources.

drivers/ata/libata-scsi.c

@@ -3174,7 +3174,7 @@ void ata_scsi_dev_rescan(void *data)
 
 /**
  *	ata_sas_port_alloc - Allocate port for a SAS attached SATA device
- *	@pdev: PCI device that the scsi device is attached to
+ *	@host: ATA host container for all SAS ports
  *	@port_info: Information from low-level host driver
  *	@shost: SCSI host that the scsi device is attached to
  *