boards: nxp: mimxrt1170_evk: document Ethernet support on EVKB revision

10/100 ENET and gigabit ENET1G are supported on the EVKB revision.
Correcting the Supported Features table.

Signed-off-by: Derek Snell <[email protected]>

Author: DerekSnell

boards/nxp/mimxrt1170_evk/doc/index.rst

@@ -138,9 +138,9 @@ RT1170 EVKB (``mimxrt1170_evk@B//cm7/cm4``)
 +-----------+------------+-------------------------------------+-----------------+-----------------+
 | WATCHDOG  | on-chip    | watchdog                            | Supported (M7)  | Supported (M7)  |
 +-----------+------------+-------------------------------------+-----------------+-----------------+
-| ENET      | on-chip    | ethernet - 10/100M                  | Supported (M7)  | No support      |
+| ENET      | on-chip    | ethernet - 10/100M                  | Supported (M7)  | Supported (M7)  |
 +-----------+------------+-------------------------------------+-----------------+-----------------+
-| ENET1G    | on-chip    | ethernet - 10/100/1000M             | Supported (M7)  | No support      |
+| ENET1G    | on-chip    | ethernet - 10/100/1000M             | Supported (M7)  | Supported (M7)  |
 +-----------+------------+-------------------------------------+-----------------+-----------------+
 | SAI       | on-chip    | i2s                                 | Supported       | No support      |
 +-----------+------------+-------------------------------------+-----------------+-----------------+