tree 24c0e5baff82e72b3ab478e49f3f16fbbe5d50b1
parent ecf29a2f46f83207d1f0f20dff0ff7cb90e7e1e7
author Aleksander Wasaznik <aleksander.wasaznik@nordicsemi.no> 1709720373 +0100
committer Maureen Helm <maureen.helm@analog.com> 1710861963 -0500

sys: `atomic_builtin.h`: Add missing include

`atomic_builtin.h` uses `NULL`, which is defined in `stddef.h`.

Signed-off-by: Aleksander Wasaznik <aleksander.wasaznik@nordicsemi.no>