Fix Motd disk temperature (#2707)

Fixes displaying of "Always°C" temperature on disks without Min/Max temperature values.

packages/bsp/common/etc/update-motd.d/30-armbian-sysinfo

@@ -158,7 +158,7 @@ function storage_info() {
 		storage_total=$(awk '/\// {print $(NF-4)}' <<<${StorageInfo})
 		if [[ -n "$(command -v smartctl)" ]]; then
 			DISK="${STORAGE::-1}"
-			storage_temp+=$(sudo smartctl -A $DISK 2> /dev/null | grep -i temperature | awk '{print $(NF-2)}')
+			storage_temp+=$(smartctl -l scttempsts $DISK 2> /dev/null | grep -i 'Current Temperature:' | awk '{print $(NF-1)}')
 		fi
 	fi
 } # storage_info