'wakeup-parent' is a single phandle and not an array, so 'maxItems' is
wrong. Drop it.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220519011210.170022-1-robh@kernel.orgSigned-off-by: Linus Walleij <linus.walleij@linaro.org>