ARM: dts: qcom: sdx55-t55: Enable IPA

Enable IP Accelerator (IPA) on Thundercomm T55 board for getting data
connectivity from modem.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211126070520.28979-7-manivannan.sadhasivam@linaro.org