mb/lenovo/t400: Add LTN154X3-L02 to list of known displays

TESTED on Lenovo T500

Change-Id: I9c9fef82ca4af99c7d4813e0ab0e315fde93b972
Signed-off-by: Kevin Keijzer <kevin@quietlife.nl>
Reviewed-on: https://review.coreboot.org/22475
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/mainboard/lenovo/t400/blc.c

@@ -30,6 +30,7 @@ static const struct blc_pwm_t blc_entries[] = {
 	/* T500 */
 	{"LP154W02-TL06", 110},
 	{"LTN154P3-L02", 110},
+	{"LTN154X3-L02", 110},
 };
 
 int get_blc_values(const struct blc_pwm_t **entries)