K 10
svn:author
V 3
cem
K 8
svn:date
V 27
2018-11-14T00:21:49.305225Z
K 7
svn:log
V 369
cpucontrol(8): De-duplicate common update logic

Every µcode-updater must open the cpucontrol devfs node RDWR, open a
firmware file, validate the FW file has a positive length, mmap it, etc.
De-duplicate that identical logic between every individual platform.

Also, constify references to the readonly-mapped firmware files while here.

Sponsored by:	Dell EMC Isilon

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