Enable USE_OPTION_TABLE for ThinkPad X60

Without this option bluetooth configuration value in nvram is not
consulted properly.

It also enables built-in volume control (read-only).

Tested on: ThinkPad X60s, 1702.

Change-Id: I2fc6bb527c6e086a083e63922d1253eda7d4a36d
Signed-off-by: Motiejus Jakštys <desired.mta@gmail.com>
Reviewed-on: http://review.coreboot.org/985
Tested-by: build bot (Jenkins)
Reviewed-by: Sven Schnelle <svens@stackframe.org>
diff --git a/src/mainboard/lenovo/x60/Kconfig b/src/mainboard/lenovo/x60/Kconfig
index d35ab03..e77fac6 100644
--- a/src/mainboard/lenovo/x60/Kconfig
+++ b/src/mainboard/lenovo/x60/Kconfig
@@ -24,6 +24,7 @@
 	select HAVE_SMI_HANDLER
 	select HAVE_ACPI_TABLES
 	select HAVE_ACPI_RESUME
+	select USE_OPTION_TABLE
 
 config MAINBOARD_DIR
 	string