[PATCH] USB: EHCI on non-Au1200 build fix

Including ehci-au1xxx.c on a non-Au1200 Alchemy only to have it throw
an error is stupid.

From: Ralf Baechle <ralf@linux-mips.org>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 7d7c97c..9b37e50 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -897,7 +897,7 @@
 #define	PLATFORM_DRIVER		ehci_fsl_driver
 #endif
 
-#ifdef CONFIG_SOC_AU1X00
+#ifdef CONFIG_SOC_AU1200
 #include "ehci-au1xxx.c"
 #define	PLATFORM_DRIVER		ehci_hcd_au1xxx_driver
 #endif