RISC-V SpacemiT DT changes for 6.18
- Add OrangePi RV2 board support
- Add reset support to UART driver
- Add PDMA driver support
- Remove sec_uart1 node
* tag 'spacemit-dt-for-6.18-1' of https://github.com/spacemit-com/linux:
riscv: dts: spacemit: uart: remove sec_uart1 device node
riscv: dts: spacemit: Enable PDMA on Banana Pi F3 and Milkv Jupiter
riscv: dts: spacemit: Add PDMA node for K1 SoC
riscv: dts: spacemit: add UART resets for Soc K1
riscv: dts: spacemit: Add OrangePi RV2 board device tree
dt-bindings: riscv: spacemit: Add OrangePi RV2 board
Link: https://lore.kernel.org/r/20250919055525-GYC5766558@gentoo.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>