ide: add IDE_HFLAG_BOOTABLE host flag

Add IDE_HFLAG_BOOTABLE host flag and IDE_HFLAG_OFF_BOARD define.  Convert
all host drivers using ide_pci_device_t to use IDE_HFLAG_{BOOTABLE,OFF_BOARD}
instead of d->bootable and then remove no longer needed d->bootable.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c
index 648432f..23f7eac 100644
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -458,10 +458,10 @@
 		.init_hwif	= init_hwif_via82cxxx,
 		.autodma	= NOAUTODMA,
 		.enablebits	= {{0x40,0x02,0x02}, {0x40,0x01,0x01}},
-		.bootable	= ON_BOARD,
-		.host_flags	= IDE_HFLAG_PIO_NO_BLACKLIST
-				| IDE_HFLAG_PIO_NO_DOWNGRADE
-				| IDE_HFLAG_POST_SET_MODE,
+		.host_flags	= IDE_HFLAG_PIO_NO_BLACKLIST |
+				  IDE_HFLAG_PIO_NO_DOWNGRADE |
+				  IDE_HFLAG_POST_SET_MODE |
+				  IDE_HFLAG_BOOTABLE,
 		.pio_mask	= ATA_PIO5,
 	},{	/* 1 */
 		.name		= "VP_IDE",
@@ -469,10 +469,10 @@
 		.init_hwif	= init_hwif_via82cxxx,
 		.autodma	= AUTODMA,
 		.enablebits	= {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
-		.bootable	= ON_BOARD,
-		.host_flags	= IDE_HFLAG_PIO_NO_BLACKLIST
-				| IDE_HFLAG_PIO_NO_DOWNGRADE
-				| IDE_HFLAG_POST_SET_MODE,
+		.host_flags	= IDE_HFLAG_PIO_NO_BLACKLIST |
+				  IDE_HFLAG_PIO_NO_DOWNGRADE |
+				  IDE_HFLAG_POST_SET_MODE |
+				  IDE_HFLAG_BOOTABLE,
 		.pio_mask	= ATA_PIO5,
 	}
 };