driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7BZYX
CVE: NA

Reference: NA

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From: Yicong Yang <yangyicong@hisilicon.com>

The PCIe devices supported by the PTT trace can be removed/rescanned by
hotplug or through sysfs.  Add support for dynamically updating the
available filter list by registering a PCI bus notifier block. Then user
can always get latest information about available tracing filters and
driver can block the invalid filters of which related devices no longer
exist in the system.
Reviewed-by: NJonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: NYicong Yang <yangyicong@hisilicon.com>