ROMFS: start heater after px4io

Otherwise the device is not available when we start the heater.

ROMFS/px4fmu_common/init.d/rc.sensors

@@ -71,12 +71,6 @@ then
 fi
 
 
-# Heater driver for temperature regulated IMUs.
-if param compare -s SENS_EN_THERMAL 1
-then
-	heater start
-fi
-
 # Teraranger one tof sensor
 if param greater -s SENS_EN_TRANGER 0
 then

ROMFS/px4fmu_common/init.d/rcS

@@ -404,6 +404,14 @@ else
 		fi
 	fi
 
+	# Heater driver for temperature regulated IMUs.
+	# The heater needs to start after px4io.
+	if param compare -s SENS_EN_THERMAL 1
+	then
+		heater start
+	fi
+
+
 	#
 	# RC update (map raw RC input to calibrate manual control)
 	#  start before commander