ARM: dts: qcom-*: replace deprecated perst-gpio with perst-gpios

Replace deprecated perst-gpio properties with up-to-date perst-gpios
in the arm32 Qualcomm Snapdragon device trees.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220506152107.1527552-8-dmitry.baryshkov@linaro.org