drivers/hwmon/hdaps.c: add Lenovo Thinkpad T400 to the whitelist

Add Lenovo Thinkpad T400.  I have done the testing on my laptop.  The
hdaps module detects the device and the hdapsd daemon is able to [un]park
the disk.

Signed-off-by: Ritesh Raj Sarraf <rrs@debian.org>
Cc: Frank Seidel <frank@f-seidel.de>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/hwmon/hdaps.c

@@ -522,6 +522,7 @@ static struct dmi_system_id __initdata hdaps_whitelist[] = {
 	HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T42p", HDAPS_BOTH_AXES),
 	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T42"),
 	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T43"),
+	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T400", HDAPS_BOTH_AXES),
 	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T60", HDAPS_BOTH_AXES),
 	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61p", HDAPS_BOTH_AXES),
 	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61", HDAPS_BOTH_AXES),