arm64: dts: qcom: pm8994: Fix up spmi-gpio node

Add a common compatible and switch to gpio-ranges.

Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20201005150313.149754-5-konradybcio@gmail.com


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>