smb: client: add tracepoints for lock operations

smb: client: add tracepoints for lock operations

Add tracepoints when lock operations are sent to the
server with details including lock offset, length, and flags.

smb3_lock_enter: before sending lock request
smb3_lock_done: lock acquired successfully
smb3_lock_err: lock request failed
smb3_lock_cached: lock granted from local cache (no server roundtrip)

Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>