GPU Overclock: 8064 GPU Overclock to 487 MHz

Signed-off-by: faux123 <reioux@gmail.com>
Signed-off-by: Derek Cannata <thederekjay@gmail.com>
Revert "Revert "auto_hotplug: Not sure this method has any real benifit.""

This reverts commit 7c9927a0e2dad0f4cb0eeb34ac8db1c06694a58d.
Fix voltage control.

Signed-off-by: Derek Cannata <thederekjay@gmail.com>