nonclangable.conf: fix systemd efi build

[quaresmajose]

• systemd-boot have it fixed on recipe but as it a clang issue it's better to move it here
• systemd needs it when build with efi package config enabled since v254

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[quaresmajose]

Don't quite understand the relation of this error with the proposed change on the PR

Test case logrotate.LogrotateTest.test_logrotate_newlog depends on logrotate.LogrotateTest.test_logrotate_wtmp but it didn't pass/run.
Not appropiate for systemd image
Traceback (most recent call last):
  File "/home/khem/actions-runner-meta-clang/_work/meta-clang/meta-clang/yoe/sources/poky/meta/lib/oeqa/core/decorator/__init__.py", line 35, in wrapped_f
    return func(*args, **kwargs)
  File "/home/khem/actions-runner-meta-clang/_work/meta-clang/meta-clang/yoe/sources/poky/meta/lib/oeqa/runtime/cases/parselogs.py", line 393, in test_parselogs
    self.assertEqual(errcount, 0, msg=self.msg)
AssertionError: 1 != 0 : Log: /home/khem/actions-runner-meta-clang/_work/meta-clang/meta-clang/yoe/build/tmp/work/qemuarm64-yoe-linux/yoe-sdk-image/1.0-r0/target_logs/postinstall.log
-----------------------
Central error:  * opkg_cmd_exec: Command failed to capture privilege lock: Resource temporarily unavailable.
***********************
 * opkg_lock: Could not lock /run/opkg.lock: Resource temporarily unavailable.
 * opkg_cmd_exec: Command failed to capture privilege lock: Resource temporarily unavailable.

[kraj]

I am not sure if its should be moved here. It improves the situation, where it reports errors while gcc does not. SSE is not available everywhere and clang rightly points it out. also look at ltp recipe