dt-bindings: vendor-prefixes: Add microtips

Add document vendor prefix for Microtips Technology USA (microtips).

Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20240515095133.745492-2-a-bhatia1@ti.com


Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240515095133.745492-2-a-bhatia1@ti.com