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>
diff --git a/drivers/ata/pata_ninja32.c b/drivers/ata/pata_ninja32.c
index 8213d08..c9c0ea6 100644
--- a/drivers/ata/pata_ninja32.c
+++ b/drivers/ata/pata_ninja32.c
@@ -73,7 +73,7 @@
 	struct ata_device *adev = &ap->link.device[device];
 	if (ap->private_data != adev) {
 		iowrite8(0xd6, ap->ioaddr.bmdma_addr + 0x1f);
-		ata_std_dev_select(ap, device);
+		ata_sff_dev_select(ap, device);
 		ninja32_set_piomode(ap, adev);
 	}
 }
@@ -132,7 +132,7 @@
 	ap->ioaddr.ctl_addr = base + 0x1E;
 	ap->ioaddr.altstatus_addr = base + 0x1E;
 	ap->ioaddr.bmdma_addr = base;
-	ata_std_ports(&ap->ioaddr);
+	ata_sff_std_ports(&ap->ioaddr);
 
 	iowrite8(0x05, base + 0x01);	/* Enable interrupt lines */
 	iowrite8(0xBE, base + 0x02);	/* Burst, ?? setup */
@@ -142,7 +142,7 @@
 	iowrite8(0xa4, base + 0x1c);	/* Unknown */
 	iowrite8(0x83, base + 0x1d);	/* BMDMA control: WAIT0 */
 	/* FIXME: Should we disable them at remove ? */
-	return ata_host_activate(host, dev->irq, ata_interrupt,
+	return ata_host_activate(host, dev->irq, ata_sff_interrupt,
 				 IRQF_SHARED, &ninja32_sht);
 }