USB: use generic platform driver on ath79

The ath79 usb driver doesn't do anything special and is now converted
to the generic ehci and ohci driver.
This was tested on a TP-Link TL-WR1043ND (AR9132)

Acked-by: Gabor Juhos <juhosg@openwrt.org>
CC: Imre Kaloz <kaloz@openwrt.org>
CC: linux-mips@linux-mips.org
CC: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index cbd3df8..f788eb8 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -222,11 +222,15 @@
 	  support.
 
 config USB_EHCI_ATH79
-	bool "EHCI support for AR7XXX/AR9XXX SoCs"
+	bool "EHCI support for AR7XXX/AR9XXX SoCs (DEPRECATED)"
 	depends on USB_EHCI_HCD && (SOC_AR71XX || SOC_AR724X || SOC_AR913X || SOC_AR933X)
 	select USB_EHCI_ROOT_HUB_TT
+	select USB_EHCI_HCD_PLATFORM
 	default y
 	---help---
+	  This option is deprecated now and the driver was removed, use
+	  USB_EHCI_HCD_PLATFORM instead.
+
 	  Enables support for the built-in EHCI controller present
 	  on the Atheros AR7XXX/AR9XXX SoCs.
 
@@ -316,10 +320,14 @@
 	  OMAP3 and later chips.
 
 config USB_OHCI_ATH79
-	bool "USB OHCI support for the Atheros AR71XX/AR7240 SoCs"
+	bool "USB OHCI support for the Atheros AR71XX/AR7240 SoCs (DEPRECATED)"
 	depends on USB_OHCI_HCD && (SOC_AR71XX || SOC_AR724X)
+	select USB_OHCI_HCD_PLATFORM
 	default y
 	help
+	  This option is deprecated now and the driver was removed, use
+	  USB_OHCI_HCD_PLATFORM instead.
+
 	  Enables support for the built-in OHCI controller present on the
 	  Atheros AR71XX/AR7240 SoCs.