just load on EVERY lenovo branded thinkpad

this fixes the problem there is no embedded controller in the dmi
on the sandy bridge thinkpads

closes #1

Author: evgeni

thinkpad_ec.c

@@ -460,6 +460,7 @@ static int __init check_dmi_for_ec(void)
 		TP_DMI_MATCH("IBM", "ThinkPad A30"),
 		TP_DMI_MATCH("IBM", "ThinkPad T23"),
 		TP_DMI_MATCH("IBM", "ThinkPad X24"),
+		TP_DMI_MATCH("LENOVO", "ThinkPad"),
 		{ .ident = NULL }
 	};
 	return dmi_find_substring(DMI_DEV_TYPE_OEM_STRING,