Merge tag 'tracing-pull-request' of https://gitlab.com/stefanha/qemu into staging

Pull request

A tracing cleanup.

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# gpg: Signature made Tue 11 Mar 2025 10:53:23 HKT
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [ultimate]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [ultimate]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* tag 'tracing-pull-request' of https://gitlab.com/stefanha/qemu:
  trace/control-target: cleanup headers and make compilation unit common

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>