If a device is plugged in the pcie-root-port when VM kernel is
booting, the kernel may wrongly disable the device.
This bug was brought in by two patches of the linux kernel:
https://patchwork.kernel.org/patch/10575355/https://patchwork.kernel.org/patch/10766219/
VM runtime like kata uses this feature to boot microVM,
so we must fix it up. We hack into the pcie native hotplug
patch so that hotplug/unplug will work under this circumstance.
Signed-off-by: Ying Fang <fangying1@huawei.com>
