[PCIe-0111]sync mainline kernel PCIe 5.3rcX patchset into ubuntu HWE kernel branch

[Fred Kimmy]

[Bug Description]
PCIe patchset have merged into mainline 5.4rc5 kernel. Pls backport ubuntu 18.04.5 kernel version
[Steps to Reproduce]
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[Actual Results]

[Expected Results]

[Reproducibility]

[Additional information]
  (Firmware version, kernel version, affected hardware, etc. if required):

[Resolution]
arm64: PCI: Preserve firmware configuration when desired
arm64: PCI: Allow resource reallocation if necessary
PCI: Don't auto-realloc if we're preserving firmware config
PCI/ACPI: Evaluate PCI Boot Configuration _DSM

[Ike Panhc (ikepanhc)]

These patches can be found in focal/master-next.

ikepanhc@Kira:~/Canonical/ubuntu-focal$ gitoneline master-next | grep 'Evaluate PCI' | head -1
a78cf9657ba5 <email address hidden> 2019-06-21 18:11:53 -0500 PCI/ACPI: Evaluate PCI Boot Configuration _DSM
ikepanhc@Kira:~/Canonical/ubuntu-focal$ gitoneline master-next | grep 'auto-realloc' | head -1
7ac0d094fbe9 <email address hidden> 2019-06-21 18:11:53 -0500 PCI: Don't auto-realloc if we're preserving firmware config
ikepanhc@Kira:~/Canonical/ubuntu-focal$ gitoneline master-next | grep 'Allow resource reallocation' | head -1
3e8ba9686600 <email address hidden> 2019-06-21 18:11:54 -0500 arm64: PCI: Allow resource reallocation if necessary
ikepanhc@Kira:~/Canonical/ubuntu-focal$ gitoneline master-next | grep 'Preserve firmware configuration' | head -1
85dc04136e86 <email address hidden> 2019-06-21 18:11:54 -0500 arm64: PCI: Preserve firmware configuration when desired