arm64: dts: ti: k3-am642-phyboard-electra-rdk: Enable trickle charger

Be default, R511 iand D19 are not populated on our phyBOARD-Electra.
This resistor and diode connect VCC_3V3_SW with VBAT and permanently
charge the RTC battery.

Enable trickle charge to charge the battery through the RTC.

Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Link: https://lore.kernel.org/r/20240911124251.702590-3-w.egorov@phytec.de


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