PCI: vmd: Revert 2565e5b69c44 ("PCI: vmd: Do not disable MSI-X remapping if interrupt...

PCI: vmd: Revert 2565e5b69c44 ("PCI: vmd: Do not disable MSI-X remapping if interrupt remapping is enabled by IOMMU.")

BugLink: https://bugs.launchpad.net/bugs/1976587
Revert 2565e5b69c44 ("PCI: vmd: Do not disable MSI-X remapping if
interrupt remapping is enabled by IOMMU.")

The commit 2565e5b69c44 was added as a workaround to keep MSI-X
remapping enabled if IOMMU enables interrupt remapping. VMD would keep
running in low performance mode. There is no dependency between MSI-X
remapping by VMD and interrupt remapping by IOMMU.

Link: https://lore.kernel.org/r/20220511095707.25403-3-nirmal.patel@linux.intel.com
Signed-off-by: Nirmal Patel <nirmal.patel@linux.intel.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
(cherry picked from commit c94f732e8001a860b42aa740b0a178a29907463c)
Signed-off-by: Koba Ko <koba.ko@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Luke Nowakowski-Krijger <luke.nowakowskikrijger@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>