regression suspend/resume on Lenovo T420

[Poul-Henning Kamp]

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In message <20170514193006.GA1298 at brick>, Edward Tomasz =?utf-8?Q?Napiera=C5=82
a?= writes:

>I've tried to verify that, and sadly it wasn't it for me.  The commit
>that does break resume for me is r316767.  The current -CURRENT with
>this one commit reverted ("svn merge -c -r316767 .") suspends and resumes
>correctly, at least in VT; I decided to take X out of the picture for
>now.

I can confirm that this also makes resume work on my T430s running:

	FreeBSD 12.0-CURRENT #0 r318250M amd64

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