mainboard/lenovo/t530/Kconfig: No Super I/O on this board

Disable Super I/O related topics showing in menuconfig.

Change-Id: I246bc935147baf6ff2dfcb306079cc2d4c7cb153
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/7985
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>