arm64: dts: qcom: sm6115: Un-enable SPI5 by default

The commit mentioned in the fixes tag erroneously enabled SPI5
unconditionally. Undo it.

Fixes: 25aab0b8 ("arm64: dts: qcom: sm6115: Add geni debug uart node for qup0")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230216124921.3985834-1-konrad.dybcio@linaro.org