ath10k: add tracing for tx info

The tx info such as msdu_id, frame len, vdev id and tid are reported
to user space by tracepoint. This is useful for collecting tx
statistics.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>