IDE: compile fix for sff_dma_ops

The sff_dma_ops struct should be wrapped by BLK_DEV_IDEDMA_SFF instead
of BLK_DEV_IDEDMA_PCI.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

include/linux/ide.h

@@ -1111,7 +1111,6 @@ void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *);
 #ifdef CONFIG_BLK_DEV_IDEDMA_PCI
 int ide_pci_set_master(struct pci_dev *, const char *);
 unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *);
-extern const struct ide_dma_ops sff_dma_ops;
 int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *);
 int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *);
 #else
@@ -1275,6 +1274,7 @@ extern int __ide_dma_end(ide_drive_t *);
 int ide_dma_test_irq(ide_drive_t *);
 extern void ide_dma_lost_irq(ide_drive_t *);
 extern void ide_dma_timeout(ide_drive_t *);
+extern const struct ide_dma_ops sff_dma_ops;
 #endif /* CONFIG_BLK_DEV_IDEDMA_SFF */
 
 #else