Revert "mptable: mark PCI interrupts as edge triggered"
Revert "mptable: mark PCI interrupts as edge triggered"

Legacy PCI interrupts should be level triggered, not edge triggered.

The reverted change was done as part of a series of patches during
debugging of virtio-pci differences from virtio-mmio, but this was not
the actual root cause of the problems.

BUG=None
TEST=Boot crosvm on x86-64 and verify virtio devices still work

This reverts commit 9357ceab6ac207498fc2cff4be70aa6975e9c79f.

Change-Id: If1bf6e48d63fe352f0b914f5bdb2e346ab210369
Signed-off-by: Daniel Verkamp <72bc170b46ec491f7bdd4359a1c0bfed274de40c@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1297840
Commit-Ready: ChromeOS CL Exonerator Bot <fa429e5907f00867f797423aea74327bb02c91b6@appspot.gserviceaccount.com>
Reviewed-by: Dylan Reid <c791bfe44996c1eed9c7149a0c5f12a86d58eb85@chromium.org>
Reviewed-by: Zach Reizner <3374927928a53d04457674c546bd4de57c2044ec@chromium.org>

google/crosvm,google/crosvm,google/crosvm,google/crosvm