Perf can be linked against libopencsd (coresight) if enabled to do so.
As the version of this library in Bullseye was too old, it had
previously been disabled. This option is enabled in Bookworm, but seems
to have got carried across when merging the Apertis changes. Re-enable
this library.

Signed-off-by: Martyn Welch <martyn.welch@collabora.com>