i82801ix: Enable usbdebug options.

Needed to be able to choose convenient usbdebug port.

Change-Id: I84b304f0f8fa79cc8d4a136ee6d78dc7659601c9
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/6410
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

src/southbridge/intel/i82801ix/Kconfig

@@ -26,6 +26,7 @@ config SOUTHBRIDGE_INTEL_I82801IX
 	select HAVE_HARD_RESET
 	select USE_WATCHDOG_ON_BOOT
 	select HAVE_SMI_HANDLER
+	select HAVE_USBDEBUG_OPTIONS
 
 if SOUTHBRIDGE_INTEL_I82801IX