ibexpeak: Move to common FADT

Change-Id: Ibb4dcc4356876f6385e79c10d8296fb680937827
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7201
Reviewed-by: Nicolas Reinecke <nr@das-labor.org>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)

src/southbridge/intel/ibexpeak/Kconfig

@@ -35,6 +35,7 @@ config SOUTH_BRIDGE_OPTIONS # dummy
 	select SOUTHBRIDGE_INTEL_COMMON
 	select HAVE_USBDEBUG_OPTIONS
 	select PER_DEVICE_ACPI_TABLES
+	select COMMON_FADT
 
 config EHCI_BAR
 	hex