hdata: Update ipmi sensors structure
hdata: Update ipmi sensors structure

Signed-off-by: Vasant Hegde <a6d753843573f7bfed5075c1e875b0be8007a0ab@linux.vnet.ibm.com>
Reviewed-by: Dan Horák <2591e5f46f28d303f9dc027d475a5c60d8dea17a@danny.cz>
Signed-off-by: Vasant Hegde <a6d753843573f7bfed5075c1e875b0be8007a0ab@linux.vnet.ibm.com>

legoater/skiboot,shenki/skiboot,open-power/skiboot,shenki/skiboot,qemu/skiboot,qemu/skiboot,qemu/skiboot,open-power/skiboot,qemu/skiboot,qemu/skiboot,legoater/skiboot,shenki/skiboot,legoater/skiboot,legoater/skiboot,shenki/skiboot,open-power/skiboot,shenki/skiboot,open-power/skiboot,legoater/skiboot,open-power/skiboot