dt-bindings: vendor-prefixes: add YADRO

Add vendor prefix for YADRO (https://www.yadro.com/

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Signed-off-by: Andrei Kartashev <a.kartashev@yadro.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211119120057.12118-2-a.kartashev@yadro.com


Signed-off-by: Joel Stanley <joel@jms.id.au>