[LU-17935] kfilnd: Fix some cosmetic logging issues

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Chris Horn
• Reporter: Chris Horn

Description

Log messages that refer to a struct kfilnd_transaction should print
the pointer to the struct with "TN %p".

Assign kfilnd_transaction::msg_type in the kfilnd_process_rx_event
path so that debug messages show the correct message type.