libata: rename SFF functions

SFF functions have confusing names.  Some have sff prefix, some have
bmdma, some std, some pci and some none.  Unify the naming by...

* SFF functions which are common to both BMDMA and non-BMDMA are
  prefixed with ata_sff_.

* SFF functions which are specific to BMDMA are prefixed with
  ata_bmdma_.

* SFF functions which are specific to PCI but apply to both BMDMA and
  non-BMDMA are prefixed with ata_pci_sff_.

* SFF functions which are specific to PCI and BMDMA are prefixed with
  ata_pci_bmdma_.

* Drop generic prefixes from LLD specific routines.  For example,
  bfin_std_dev_select -> bfin_dev_select.

The following renames are noteworthy.

  ata_qc_issue_prot() -> ata_sff_qc_issue()
  ata_pci_default_filter() -> ata_bmdma_mode_filter()
  ata_dev_try_classify() -> ata_sff_dev_classify()

This rename is in preparation of separating SFF support out of libata
core layer.  This patch strictly renames functions and doesn't
introduce any behavior difference.

Signed-off-by: Tejun Heo <htejun@gmail.com>

drivers/ata/pata_sis.c

@@ -156,7 +156,7 @@ static int sis_pre_reset(struct ata_link *link, unsigned long deadline)
 	/* Clear the FIFO settings. We can't enable the FIFO until
 	   we know we are poking at a disk */
 	pci_write_config_byte(pdev, 0x4B, 0);
-	return ata_std_prereset(link, deadline);
+	return ata_sff_prereset(link, deadline);
 }
 
 
@@ -821,7 +821,7 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	sis_fixup(pdev, chipset);
 
-	return ata_pci_init_one(pdev, ppi, &sis_sht, chipset);
+	return ata_pci_sff_init_one(pdev, ppi, &sis_sht, chipset);
 }
 
 static const struct pci_device_id sis_pci_tbl[] = {