[EXTERNAL] [PATCH 17/29] doc/guides: improve FIPS validation sample app guide

[Gowrishankar Muthukrishnan]

> Improve the FIPS validation sample application documentation:
> - restructure CAVP and ACVP as subsections under Limitations
> - fix indentation of code blocks and bullet lists
> - improve grammar and clarify explanations
> - use consistent formatting for options
> 
> Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>

Acked-by: Gowrishankar Muthukrishnan <gmuthukrishn at marvell.com>