doc: seagate: adopt zephyr:board-supported-hw directive

Replace manually authored hardware features table with the new Zephyr
board supported hardware directive which automatically generates an
up-to-date table based on the boards' Devicetree.

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

boards/seagate/faze/doc/index.rst

@@ -37,28 +37,7 @@ More information can be found here:
 Supported Features
 ==================
 
-All the hardware features available on the FaZe board are supported in Zephyr.
-
-+-----------+------------+-------------------------------------+
-| Interface | Controller | Driver/Component                    |
-+===========+============+=====================================+
-| NVIC      | on-chip    | nested vector interrupt controller  |
-+-----------+------------+-------------------------------------+
-| SYSTICK   | on-chip    | systick                             |
-+-----------+------------+-------------------------------------+
-| IOCON     | on-chip    | pinmux                              |
-+-----------+------------+-------------------------------------+
-| CLOCK     | on-chip    | clock and reset control             |
-+-----------+------------+-------------------------------------+
-| GPIO      | on-chip    | gpio                                |
-+-----------+------------+-------------------------------------+
-| I2C       | on-chip    | i2c master/slave controller         |
-+-----------+------------+-------------------------------------+
-| UART      | on-chip    | serial port-polling;                |
-|           |            | serial port interrupt               |
-+-----------+------------+-------------------------------------+
-| EEPROM    | on-chip    | eeprom                              |
-+-----------+------------+-------------------------------------+
+.. zephyr:board-supported-hw::
 
 Connections and IOs
 ===================

boards/seagate/legend/doc/index.rst

@@ -49,31 +49,7 @@ Hardware
 Supported Features
 ==================
 
-All the hardware features available on the Legend boards are supported by
-Zephyr.
-
-+-----------+------------+-------------------------------------+
-| Interface | Controller | Driver/Component                    |
-+===========+============+=====================================+
-| NVIC      | on-chip    | nested vector interrupt controller  |
-+-----------+------------+-------------------------------------+
-| SYSTICK   | on-chip    | systick                             |
-+-----------+------------+-------------------------------------+
-| CLOCK     | on-chip    | clock and reset control             |
-+-----------+------------+-------------------------------------+
-| GPIO      | on-chip    | gpio                                |
-+-----------+------------+-------------------------------------+
-| I2C       | on-chip    | i2c master/slave controller         |
-+-----------+------------+-------------------------------------+
-| UART      | on-chip    | serial                              |
-+-----------+------------+-------------------------------------+
-| SPI flash | on-chip    | spi_nor                             |
-+-----------+------------+-------------------------------------+
-| LED strip | on-chip    | ws2812                              |
-+-----------+------------+-------------------------------------+
-| USB       | on-chip    | usb                                 |
-+-----------+------------+-------------------------------------+
-
+.. zephyr:board-supported-hw::
 
 Connections and IOs
 ===================