dt-bindings: arm: sunxi: Add two H616 board compatible strings

This adds the two board compatible strings of two boards with the
Allwinner H616 SoC. One is a development board from OrangePi, the other
some TV box from some formerly unused vendor. Add that vendor to the
vendor list on the way.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220708105235.3983266-6-andre.przywara@arm.com