dt-bindings: dmaengine: qcom: gpi: add compatible for SM6350

Document the compatible for GPI DMA controller on SM6350 SoC.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220812082721.1125759-2-luca.weiss@fairphone.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>