The GPIO55 is part of SPI10 pins, not its chip-select.  Probably the
intention was to use one of dedicated chip-select GPIOs: 47 or 67.
GPIO47 is used for UART2, so choose GPIO67.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221018155450.39816-1-krzysztof.kozlowski@linaro.org