dt-bindings: vendor-prefixes: Add an entry for JOZ BV

Add "joz" entry for JOZ BV: https://joz.nl/en/about-joz/



Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>