suspend/resume timings

[Mitch Bradley]

Even though the keyboard is on the wrong rail on B2, it might not be 
necessary to reset it.

In the Open Firmware suspend/resume test, the keyboard remains 
functional after resume, without any action on the part of the OFW 
keyboard driver.  That driver is not aware that suspend happened, yet 
the keyboard still works.

Perhaps it helps that the keyboard controller in the EC chip remains 
powered.

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