RFR 8173410: Add commented config line for jdk.security.provider.preferred

[Anthony Scarpino]

Please review this change for Solaris SPARC configurations to add an 
optional configuration line.

There are a few minor changes which didn't change any content.  Changing 
some "#"'s for a bit more consistency and readability across the file. 
Also moving an RMI entry to the end that was merged right in the middle 
of the disabled algorithms section.

http://cr.openjdk.java.net/~ascarpino/8173410/webrev/

thanks

Tony