hw/pci: add some convenient trace-events for pcie and shpc hotplug

Add trace-events that may help to debug problems with hotplugging.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240301154146.761531-2-vsementsov@yandex-team.ru>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
3 files changed