intel/bd82x6x: fix building usb debug on SNB/IVB

Change-Id: Ica3afbf8277cb025251da7af181f8de0d0036b45
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/3389
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/southbridge/intel/bd82x6x/usb_debug.c

@@ -22,9 +22,10 @@
 #include <console/console.h>
 #include <usbdebug.h>
 #include <device/pci_def.h>
-#include "pch.h"
 
 #ifdef __PRE_RAM__
+#include "pch.h"
+
 void enable_usbdebug(unsigned int port)
 {
 	u32 dbgctl;