lenovo/t530: Use native LVDS gfx init

As introduced in:
1783a3c ivybridge: LVDS gfx init.

The panel on the T530 is a AUO B156HW01 V.4, 40 pin LVDS (2 ch, 6-bit).
Tx parameters derived from datasheet table.

Change-Id: I2e3b56a2a3d1ede08a704b839cc11fe6d685cf5b
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6395
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <gaumless@gmail.com>
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
2 files changed