regulator: dt-bindings: rt5739: Add compatible for rt5733

Add compatible string for rt5733.

Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1688048996-25606-2-git-send-email-cy_huang@richtek.com


Signed-off-by: Mark Brown <broonie@kernel.org>