dt-bindings: vendor-prefixes: add turing

Add vendor prefix for Turing Machines, Inc.
(https://turingpi.com

)

Signed-off-by: Sam Edwards <CFSworks@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231011225823.2542262-2-CFSworks@gmail.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>