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
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Central error:  * opkg_cmd_exec: Command failed to capture privilege lock: Resource temporarily unavailable.
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 * opkg_lock: Could not lock /run/opkg.lock: Resource temporarily unavailable.
 * opkg_cmd_exec: Command failed to capture privilege lock: Resource temporarily unavailable.