USB: ohci: add bus glue for the Atheros AR71XX/AR7240 SoCs

The Atheros AR71XX/AR7240 SoCs have a built-in OHCI controller.
This patch adds the necessary glue code to make the generic OHCI
driver usable for them.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/arch/mips/ath79/Kconfig b/arch/mips/ath79/Kconfig
index 649a2a3..4770741 100644
--- a/arch/mips/ath79/Kconfig
+++ b/arch/mips/ath79/Kconfig
@@ -27,10 +27,12 @@
 
 config SOC_AR71XX
 	select USB_ARCH_HAS_EHCI
+	select USB_ARCH_HAS_OHCI
 	def_bool n
 
 config SOC_AR724X
 	select USB_ARCH_HAS_EHCI
+	select USB_ARCH_HAS_OHCI
 	def_bool n
 
 config SOC_AR913X