meta-romulus: Add w83773g sensor config

Romulus uses w83773g hwmon sensor and it has 3 temperature sensors.
Add the kernel config and hwmon config to use the sensor.

Change-Id: If9ddc5eba17fa7e60b714d158c00e43d7e5378f8
Signed-off-by: Lei YU <mine260309@gmail.com>
diff --git a/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon%.bbappend b/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon%.bbappend
index ebe0a53..7969349 100644
--- a/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon%.bbappend
+++ b/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon%.bbappend
@@ -8,6 +8,7 @@
 SRC_URI += " file://0001-sysfs-Return-ETIMEDOUT-instead-of-throw-exception.patch"
 
 CHIPS = " \
+        i2c@1e78a000/i2c-bus@440/w83773g@4c \
         pwm-tacho-controller@1e786000 \
         "
 ITEMSFMT = "ahb/apb/{0}.conf"