[$] FIPS-compliant random numbers for the kernel

The Linux random-number generator (RNG) seems to attract an outsized amount of attention (and work) for what is, or seemingly should be, a fairly smallcomponent of the kernel. In part that is because random numbers, andtheir quality, are extremely important to a number of securityprotections, from unpredictable IP-packet sequence numbers to cryptographickeys. A recent post ofversion 43 of the Linux Random Number Generator (LRNG) by Stephan Muller is not likely to go any further than itspredecessors, but the discussion around it may lead to support for afeature that some distributions need.