ide: add IDE_HFLAG_NO_{DMA,AUTODMA} host flags

Add IDE_HFLAG_NO_{DMA,AUTODMA} host flags.  Convert all host drivers using
ide_pci_device_t to use these flags instead of d->autodma and then remove no
longer needed d->autodma.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c
index 287f4e3..6926238 100644
--- a/drivers/ide/pci/piix.c
+++ b/drivers/ide/pci/piix.c
@@ -415,7 +415,6 @@
 		.name		= name_str,		\
 		.init_chipset	= init_chipset_piix,	\
 		.init_hwif	= init_hwif_piix,	\
-		.autodma	= AUTODMA,		\
 		.enablebits	= {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \
 		.host_flags	= IDE_HFLAG_BOOTABLE,	\
 		.pio_mask	= ATA_PIO4,		\
@@ -434,9 +433,9 @@
 		 */
 		.name		= "MPIIX",
 		.init_hwif	= init_hwif_piix,
-		.autodma	= NODMA,
 		.enablebits	= {{0x6d,0xc0,0x80}, {0x6d,0xc0,0xc0}},
-		.host_flags	= IDE_HFLAG_ISA_PORTS | IDE_HFLAG_BOOTABLE,
+		.host_flags	= IDE_HFLAG_ISA_PORTS | IDE_HFLAG_NO_DMA |
+				  IDE_HFLAG_BOOTABLE,
 		.pio_mask	= ATA_PIO4,
 	},