arm64: dts: qcom: sm8550-qrd: enable IPA

Enable IPA on the SM8550 QRD.  The GSI firmware on this platform is
loaded by the AP.

Signed-off-by: Alex Elder <elder@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Link: https://lore.kernel.org/r/20231124181718.915208-3-elder@linaro.org


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