Backport Timerlat UserSpace and Cgroup Support

JIRA: https://issues.redhat.com/browse/RHEL-14932

Commit List:

• e88ed227f639 - tracing/timerlat: Add user-space interface
• cb7ca871c883 - tracing/osnoise: Skip running osnoise if all instances are off
• 4998e7fda149 - tracing/osnoise: Switch from PF_NO_SETAFFINITY to migrate_disable

Description: This merge request backports the necessary kernel modifications to introduce user-space and cgroup support for the rtla user-space tool. These changes align the rtla kernel base with version v6.4, enabling more robust and versatile performance analysis and monitoring.

Key Enhancements:

• A user-space interface for the timerlat tracer is now available, allowing for the rtla tool to also measure latency introduced by userspace.
• Add a cgroup interface to migrate the kthreads to the same cgroup as the userspace tool.

Please review the individual commits for detailed information on the changes and their impact.

Signed-off-by: Chris White chwhite@redhat.com