libroot: add posix_devctl() from POSIX.1-2024

Change-Id: I2ae748b2febcdeca0256e9033119dcf9988ccc74
Reviewed-on: https://review.haiku-os.org/c/haiku/+/8556
Reviewed-by: waddlesplash <waddlesplash@gma

libroot: add posix_devctl() from POSIX.1-2024

Change-Id: I2ae748b2febcdeca0256e9033119dcf9988ccc74
Reviewed-on: https://review.haiku-os.org/c/haiku/+/8556
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>

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