toolchain/59405: Lots of "fbt: no CTF data" console messages

[gson%gson.org@localhost (Andreas Gustafsson)]

>Number:         59405
>Category:       toolchain
>Synopsis:       Lots of "fbt: no CTF data" console messages
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu May 08 09:30:00 +0000 2025
>Originator:     Andreas Gustafsson
>Release:        NetBSD-current, source date >= 2025.05.04.21.43.42
>Organization:
  
>Environment:
System: NetBSD
Architecture: x86_64
Machine: amd64
>Description:

When running the ATF tests, the amd64 testbed now logs more than 100
console messages like these:

[ 6451.7718700] fbt: no CTF data for module dtrace_syscall
[ 6451.7718700] fbt: no CTF data for module netbsd
[ 6451.7718700] fbt: no CTF data for module dtrace_syscall
[ 6451.7718700] fbt: no CTF data for module dtrace_fbt
[ 6451.7718700] fbt: no CTF data for module dtrace_sdt
[ 6451.7718700] fbt: no CTF data for module dtrace
[ 6451.7718700] fbt: no CTF data for module solaris
[ 6451.7718700] fbt: no CTF data for module compat_13
[ 6451.7718700] fbt: no CTF data for module compat_14
[ 6451.7718700] fbt: no CTF data for module setjmp_tester

This started with the CTF commits of 2025.05.04.21.43.42.

>How-To-Repeat:

Inspect the testbed logs, for example:

  https://releng.netbsd.org/b5reports/amd64/2025/2025.05.04.21.43.42/test.log

>Fix: