dt-bindings: interconnect: OSM L3: add SDM670 compatible

Add the compatible for the OSM L3 interconnect used in the Snapdragon
670.

Signed-off-by: Richard Acayan <mailingradian@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230816230412.76862-7-mailingradian@gmail.com


Signed-off-by: Georgi Djakov <djakov@kernel.org>