libata: remove no longer needed pata_qdi driver

QDI65x0 controllers are fully supported by pata_legacy driver
so remove no longer needed pata_qdi driver.

Leave PATA_QDI config option for compatibility reasons and teach
pata_legacy to preserve the old behavior of pata_qdi driver.

Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index c6ef9d0..6bdedd7 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -831,6 +831,7 @@
 config PATA_QDI
 	tristate "QDI VLB PATA support"
 	depends on ISA
+	select PATA_LEGACY
 	help
 	  Support for QDI 6500 and 6580 PATA controllers on VESA local bus.