libata: fix a couple of doc build warnings

The kerneldoc comments for a couple of functions in drivers/ata/libata-eh.c
had fallen behind the current implementation, resulting in these doc build
warnings:

  ./drivers/ata/libata-eh.c:1449: warning: No description found for parameter 'link'
  ./drivers/ata/libata-eh.c:1449: warning: Excess function parameter 'ap' description in 'ata_eh_done'
  ./drivers/ata/libata-eh.c:1590: warning: No description found for parameter 'qc'
  ./drivers/ata/libata-eh.c:1590: warning: Excess function parameter 'dev' description in 'ata_eh_request_sense'

Update the comments and make the warnings go away.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Tejun Heo <tj@kernel.org>

drivers/ata/libata-eh.c

@@ -1434,7 +1434,7 @@ void ata_eh_about_to_do(struct ata_link *link, struct ata_device *dev,
 
 /**
  *	ata_eh_done - EH action complete
-*	@ap: target ATA port
+ *	@link: ATA link for which EH actions are complete
  *	@dev: target ATA dev for per-dev action (can be NULL)
  *	@action: action just completed
  *
@@ -1576,7 +1576,7 @@ unsigned int atapi_eh_tur(struct ata_device *dev, u8 *r_sense_key)
 
 /**
  *	ata_eh_request_sense - perform REQUEST_SENSE_DATA_EXT
- *	@dev: device to perform REQUEST_SENSE_SENSE_DATA_EXT to
+ *	@qc: qc to perform REQUEST_SENSE_SENSE_DATA_EXT to
  *	@cmd: scsi command for which the sense code should be set
  *
  *	Perform REQUEST_SENSE_DATA_EXT after the device reported CHECK