Add hwmon0 config in Palmetto.py and Barreleye.py

Both Palmetto.py and Barreleye are missing hwmon0 in HWMON_CONFIG,
which results in `Unhandled hwmon` warning log flood.
Add hwmon0's config (i2c 0-0068 for RTC ds3231's temperature) to fix the
issue.

Resolves openbmc/openbmc#608

Change-Id: Ief6a13e2cec64fbc25348c715d81bf1e2f1f5564
Signed-off-by: Lei YU <mine260309@gmail.com>
diff --git a/configs/Barreleye.py b/configs/Barreleye.py
index cbcd2d8..8e7af2c 100644
--- a/configs/Barreleye.py
+++ b/configs/Barreleye.py
@@ -369,6 +369,11 @@
 			'temp1_input' : { 'object_path' : 'temperature/ambient','poll_interval' : 5000,'scale' : -3,'units' : 'C' },
 		}
 	},
+	'0-0068' :  {
+		'names' : {
+			'temp1_input' : { 'object_path' : 'temperature/rtc','poll_interval' : 5000,'scale' : -3,'units' : 'C' },
+		}
+	},
 	'6-002d' : {
 		'names' : {
 			'pwm1' : { 'object_path' : 'speed/fan0','poll_interval' : 10000,'scale' : 1,'units' : '' },
diff --git a/configs/Palmetto.py b/configs/Palmetto.py
index 8abe4fe..19037a1 100644
--- a/configs/Palmetto.py
+++ b/configs/Palmetto.py
@@ -108,6 +108,11 @@
 GPIO_CONFIG['CHECKSTOP']      =   { 'gpio_pin': 'P5', 'direction': 'falling' }
 
 HWMON_CONFIG = {
+	'0-0068' :  {
+		'names' : {
+			'temp1_input' : { 'object_path' : 'temperature/rtc','poll_interval' : 5000,'scale' : -3,'units' : 'C' },
+		}
+	},
 	'2-004c' :  {
 		'names' : {
 			'temp1_input' : { 'object_path' : 'temperature/ambient','poll_interval' : 5000,'scale' : -3,'units' : 'C' },