arm64: dts: qcom: db845c: Add support for MCP2517FD

Add support for onboard MCP2517FD SPI CAN transceiver attached to
SPI0 of RB3.

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220421073438.1824061-1-vkoul@kernel.org