dt-bindings: arm: sunxi: Add TaiqiCat (TQC) A01

TaiqiCat (TQC) A01 is a set-top box powered by an Allwinner H6 SoC,
equipped with an AXP305 PMIC, 1GB LPDDR3 RAM, 8GB eMMC, an AP6212
WiFi/BT combo module, one 100M Ethernet port, one USB 3.0 Type-A port,
one USB 2.0 Type-A port, one Micro USB port, HDMI, SPDIF, Micro-SD, and
infrared input.

It is a blockchain-based terminal product launched by UQSoft
(Beijing UQSoft Interactive Technology Co., Ltd.), a wholly-owned
subsidiary of Ultrapower. Its dedicated product homepage[1] was once
hosted on Ultrapower’s official website[2].

It should be noted that UQSoft's official website[3] is no longer
operational, and the company appears to have been discontinued.

[1] https://web.archive.org/web/20190409213228/https://tq.ultrapower.com.cn/product.html
[2] https://www.ultrapower.com.cn
[3] http://www.uqsoft.com

Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260304073430.438835-3-jerrysteve1101@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>

Author: yjun123

Documentation/devicetree/bindings/arm/sunxi.yaml

@@ -901,6 +901,11 @@ properties:
           - const: allwinner,sl631
           - const: allwinner,sun8i-v3
 
+      - description: TaiqiCat A01
+        items:
+          - const: ultrapower,taiqicat-a01
+          - const: allwinner,sun50i-h6
+
       - description: Tanix TX1
         items:
           - const: oranth,tanix-tx1