boards: beagle: beagley_ai: Add auto-generated features

The auto-generated features table is used in most of the new boards and
is great to show the features available in different targets in the same
board.

So use it instead of manual tables

Signed-off-by: Ayush Singh <ayush@beagleboard.org>

Author: Ayush1325

boards/beagle/beagley_ai/doc/index.rst

@@ -41,18 +41,7 @@ Supported Features
 The board configuration supports a console UART via the HAT header pins. Future
 versions will also support a console over RPmsg.
 
-+-----------+------------+-----------------------+
-| Interface | Controller | Driver/Component      |
-+===========+============+=======================+
-| UART      | on-chip    | serial port-polling   |
-|           |            | serial port-interrupt |
-+-----------+------------+-----------------------+
-
-Other hardware features are currently not supported.
-
-The default configuration can be found in the defconfig file.
-
-Future configurations will add support for GPIO, I2C, SPI, etc.
+.. zephyr:board-supported-hw::
 
 Running Zephyr
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