msm: msm_bus: Add msm bus trace header snapshot

This is a snapshot of the msm bus trace header as of msm-4.9
commit 27c11b91dba00c9 ('spcom: ignore CONNECTED notification
while closing the channel').

Change-Id: Idb036bbb7db6a7ecece83bc1789b96953e027d0e
Signed-off-by: David Dai <daidavid1@codeaurora.org>