Revert "thermal: fix generic thermal I/F for hwmon"

This reverts commit 3152fb9f

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This broke libsensors.

Acked-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Len Brown <len.brown@intel.com>