Extend the UAPI to support the timestamp query user extension for the CPU job. This user extension will allow the creation of a CPU job that calculates the query timestamp by updating a timestamp BO with its value and signaling the availability syncobj. Signed-off-by: Maíra Canal <mcanal@igalia.com> Reviewed-by: Iago Toral Quiroga <itoral@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26448>