[ARM] Add platform support for PATA on RiscPC

Add pata_platform device for RiscPC, thereby converting the primary
IDE channel on the machine to PATA.

Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 7bdbe5a..e0820e8 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -545,7 +545,7 @@
 
 config PATA_PLATFORM
 	tristate "Generic platform device PATA support"
-	depends on EMBEDDED
+	depends on EMBEDDED || ARCH_RPC
 	help
 	  This option enables support for generic directly connected ATA
 	  devices commonly found on embedded systems.