Add contributors for BTV9(s905x): rickmschulz

Author: ophub

CONTRIBUTORS.md

@@ -195,3 +195,4 @@ The [u-boot](https://github.com/ophub/u-boot), [kernel](https://github.com/ophub
 | [Arthur97172](https://github.com/Arthur97172) | 184. [2025-09-11] According to his sharing in the [Issues](https://github.com/ophub/amlogic-s9xxx-armbian/issues/2978) request. the `Wocyber-A3(rk3568)` box has received support. The used dtb is `rk3568-wocyber-a3.dts`, u-boot used `u-boot.itb` and `idbloader.img`. The Gigabit wired network works fine. |
 | [sib0ndt](https://github.com/sib0ndt) | 185. [2025-10-09] According to his sharing in the [Pull](https://github.com/ophub/amlogic-s9xxx-openwrt/pull/827) request. the `Photonicat(rk3568)` box has received support. The used dtb is `rk3568-photonicat.dtb`, u-boot used `u-boot.itb` and `idbloader.img`. The Gigabit wired network works fine. |
 | [fgpx78](https://github.com/fgpx78) | 186. [2025-11-25] According to his sharing in the [Issues](https://github.com/ophub/amlogic-s9xxx-armbian/issues/3245) request. the `MeCool-m8s-pro-W(s905w)` box has received support. The used dtb is `meson-gxl-s905w-tx3-mini.dtb`, u-boot used `u-boot-s905x-s912.bin`. The Gigabit wired network works fine. |
+| [rickmschulz](https://github.com/rickmschulz) | 187. [2025-12-02] According to his sharing in the [Issues](https://github.com/ophub/amlogic-s9xxx-armbian/issues/3256) request. the `BTV9(s905x)` box has received support. The used dtb is `meson-gxl-s905x-p212.dtb`, u-boot used `u-boot-s905x-s912.bin`. The Gigabit wired network works fine. |