This commit is needed to fixed a issue introduced by 9d26d3a8f1b0 ("PCI:
Put PCIe ports into D3 during suspend")

commit 035ee288ae7ade4152f1c3cf23a587b04fdc526c
Author: Lukas Wunner <lu...@wunner.de>
Date:   Tue Sep 6 06:20:46 2016 +0200

    PCI: Fix bridge_d3 update on device removal

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https://bugs.launchpad.net/bugs/1693393

Title:
  Power consumption issue on suspend-to-idle(s2idle)

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Xenial:
  New

Bug description:
  The power consumption is pretty high(8Watt) during suspend-to-idle
  mode under Xenial.

  1. It consumes 8Watt under 4.4 kernel
  2. It consumes 4Watt under 4.8 kernel
  3. It consumes 2Watt under 4.11 kernel

  There are essential patches in 4.8 and 4.11 kernels, they are
  In 4.8
     9d26d3a PCI: Put PCIe ports into D3 during suspend
  In 4.11
     8d2c453 platform/x86: dell-laptop: Add Latitude 7480 and others to the DMI 
whitelist

  We need these 2 commits to have better s2idle support.

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