arm64: dts: ti: k3-am65-main: Remove "syscon" nodes added for pcieX_ctrl

Remove "syscon" nodes added for pcieX_ctrl and have the PCIe node
point to the parent with an offset argument. This change is as
discussed in [1].

[1] http://lore.kernel.org/r/CAL_JsqKiUcO76bo1GoepWM1TusJWoty_BRy2hFSgtEVMqtrvvQ@mail.gmail.com



Signed-off-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20230424144949.244135-2-nm@ti.com


Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>