ARM: dts: qcom-msm8960: use define for interrupt constants

Replace GIC_PPI, GIC_SPI and interrupt type numbers with appropriate
defines.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221109105140.48196-2-krzysztof.kozlowski@linaro.org