board: rockchip: Add LCKFB TaishanPi RK3566 Board

The LCKFB TaishanPi is a single-board computer based on the RK3566 SoC.

Specification:
- 1/2 Gib RAM
- Optinal EMMC
- SD-Card
- HDMI / MIPI CSI / MIPI DSI
- USB 2.0 Host (Type-A)
- USB 2.0 Host / OTG (Type-C)
- No Ethernet

This patch adds U-Boot support for the LCKFB TaishanPi RK3566 board, including:
- U-Boot device tree
- Default defconfig
- Board documentation
- MAINTAINERS entry

Changes in v2:
- Removed unused configs from `lckfb-tspi-rk3566_defconfig`
- Reordered TaishanPi entry in `doc/board/rockchip/rockchip.rst` alphabetically

Link to v1:
https://lore.kernel.org/u-boot/[email protected]/

Signed-off-by: Jiehui He <[email protected]>
Reviewed-by: Kever Yang <[email protected]>

1 files changed, 1 insertions, 0 deletions

diff --git a/doc/board/rockchip/rockchip.rst b/doc/board/rockchip/rockchip.rst
index 13e06095333..b88299cbba2 100644
--- a/doc/board/rockchip/rockchip.rst
+++ b/doc/board/rockchip/rockchip.rst
@@ -107,6 +107,7 @@ List of mainline supported Rockchip boards:
      - Anbernic RGxx3 (anbernic-rgxx3-rk3566)
      - FriendlyElec NanoPi R3S (nanopi-r3s-rk3566)
      - Hardkernel ODROID-M1S (odroid-m1s-rk3566)
+     - LCKFB TaishanPi (lckfb-tspi-rk3566)
      - Pine64 PineTab2 (pinetab2-rk3566)
      - Pine64 Quartz64-A Board (quartz64-a-rk3566)
      - Pine64 Quartz64-B Board (quartz64-b-rk3566)