ide: add CONFIG_IDE_H8300 config option

Add a separate config option for ide-8300 host driver instead of depending
on CONFIG_H8300.

This change is a preparation for the future changes and also allows ide-h8300
to be disabled if needed.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/Kconfig

@@ -313,7 +313,6 @@ comment "IDE chipset support/bugfixes"
 
 config IDE_GENERIC
 	tristate "generic/default IDE chipset support"
-	default H8300
 	help
 	  If unsure, say N.
 
@@ -883,6 +882,14 @@ config BLK_DEV_IDE_BAST
 	  Say Y here if you want to support the onboard IDE channels on the
 	  Simtec BAST or the Thorcom VR1000
 
+config IDE_H8300
+	bool "H8300 IDE support"
+	depends on H8300
+	select IDE_GENERIC
+	default y
+	help
+	  Enables the H8300 IDE driver.
+
 config BLK_DEV_GAYLE
 	bool "Amiga Gayle IDE interface support"
 	depends on AMIGA

drivers/ide/Makefile

@@ -39,7 +39,7 @@ ide-core-$(CONFIG_BLK_DEV_MPC8xx_IDE)	+= ppc/mpc8xx.o
 ide-core-$(CONFIG_BLK_DEV_IDE_PMAC)	+= ppc/pmac.o
 
 # built-in only drivers from h8300/
-ide-core-$(CONFIG_H8300)		+= h8300/ide-h8300.o
+ide-core-$(CONFIG_IDE_H8300)		+= h8300/ide-h8300.o
 
 obj-$(CONFIG_BLK_DEV_IDE)		+= ide-core.o
 obj-$(CONFIG_IDE_GENERIC)		+= ide-generic.o