I also found that the vdd_3v3_pcie and vdd_12v_pcie nodes should be moved from tegra234-p3701-0000.dtsi to tegra234-p3737-0000.dtsi. Generally speaking, they should be relocated from the module device tree file to the board device tree include file(at least the gpio property part). This makes more sense because the vdd_3v3_pcie node uses a GPIO that is also utilized by the UART, and the vdd 3v3 regulator is also located on p3737 development board(I think, I am not sure about that).
It is also mentioned in the thread below.