Expose more variables from coretemp(4) via sysctl:
Expose more variables from coretemp(4) via sysctl:

 - tjmax - Tj(max) value from the CPU
 - delta - current delta reading
 - resolution - sensor resolution in Celsius
 - throttle_log - whether a #PROCHOT was asserted since last reset

Submitted by:	Mark Johnston <markjdb gmail.com> (mostly)
MFC after:	1 month
Approved by:	re (kib)

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