arm64: dts: rockchip: Add UART DMA support for RK3528

The UART ports on RK3528 have DMA capability, describe it.
Flow control is optional, so dma-names are not added.

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
Link: https://lore.kernel.org/r/20250401100020.944658-4-amadeus@jmu.edu.cn
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Chukun Pan 2025-04-01 18:00:20 +08:00 • committed by Heiko Stuebner
commit ab6fcb58ae