arm64: dts: qcom: sm8450: correct Soundwire wakeup interrupt name

The bindings expect second Soundwire interrupt to be "wakeup" (Linux
driver takes by index):

  sm8450-hdk.dtb: soundwire-controller@33b0000: interrupt-names:1: 'wakeup' was expected

Fixes: 14341e76 ("arm64: dts: qcom: sm8450: add Soundwire and LPASS")
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/20221223132121.81130-1-krzysztof.kozlowski@linaro.org