meta-ibm: mihawk: Add 250 soc thermal sensor

Mihawk can use up to eight 250-soc.

Tested:
The user can see the temperature when using 250-soc.

(From meta-ibm rev: 74b7557b08ed2582861cd7da390d84371ec2ff86)

Change-Id: I17b0d969d0902f6470287c6164f542ad84412f7d
Signed-off-by: Ben Pai <Ben_Pai@wistron.com>
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/meta-ibm/recipes-kernel/linux/linux-aspeed/mihawk.cfg b/meta-ibm/recipes-kernel/linux/linux-aspeed/mihawk.cfg
index 63c39a9..e81c14a 100644
--- a/meta-ibm/recipes-kernel/linux/linux-aspeed/mihawk.cfg
+++ b/meta-ibm/recipes-kernel/linux/linux-aspeed/mihawk.cfg
@@ -1,5 +1,6 @@
 CONFIG_HWMON=y
 CONFIG_SENSORS_IIO_HWMON=y
+CONFIG_SENSORS_TMP401=y
 CONFIG_SENSORS_TMP421=y
 CONFIG_SENSORS_MAX31785=y
 CONFIG_SENSORS_UCD9000=y