USB: Fix Freescale high-speed USB host dependency

The high-speed USB SOC only exists on MPC834x family not MPC83xx family.
Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/ehci-hcd.c

@@ -892,7 +892,7 @@ MODULE_LICENSE ("GPL");
 #define	PCI_DRIVER		ehci_pci_driver
 #endif
 
-#ifdef CONFIG_PPC_83xx
+#ifdef CONFIG_MPC834x
 #include "ehci-fsl.c"
 #define	PLATFORM_DRIVER		ehci_fsl_driver
 #endif