alphaplus: proprietary-files: Add device specific thermal-engine config

 * It fixes:
   - I ThermalEngine: Loading configuration file /vendor/etc/thermal-engine-8150.conf
   - E ThermalEngine: Unable to open config file '/vendor/etc/thermal-engine-8150.conf'

Change-Id: I89cc59e7b4666a15a9a30165f450376f87f4bc07
Signed-off-by: jmpfbmx <jmpf.bmx@gmail.com>

proprietary-files.txt

@@ -1035,6 +1035,9 @@ vendor/lib64/sensors.sar.so
 vendor/lib64/sensors.ssc.so
 vendor/lib64/vendor.lge.hardware.sensors@1.0.so
 
+# Thermal
+vendor/etc/thermal-engine-8150.conf
+
 # Wifi
 vendor/etc/wifi/aoa_cldb_falcon.bin
 vendor/etc/wifi/aoa_cldb_swl14.bin