Revert "Added Custom Voltage and added new OPP Table"

This reverts commit 87de9d2b63798aea22dc6d59938d2a3166498332.
Revert "Revert "Added Custom Voltage and added new OPP Table""

This reverts commit 1eb9e21923867a57df1a9527acd1fb73ec2f8da7.

Fixed my mistake
random: entropy tweaks are all the rage nowadays

use nonblocking for all.  Read this web page:
http://lwn.net/Articles/489734/