dt-bindings: xilinx: Remove myself from maintainership

As I am leaving AMD and will no longer be maintaining
these platform drivers, so removing myself from maintainership.

Signed-off-by: Mubin Sayyed <mubin.sayyed@amd.com>
Acked-by: Damien Le Moal <dlemoal@kernel.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20250403060836.2602361-1-mubin.sayyed@amd.com


Signed-off-by: Rob Herring (Arm) <robh@kernel.org>