dt-bindings: arm: ti: Add verdin am62 mallow board

Add Mallow carrier board for wifi and nonwifi variants of Toradex Verdin
AM62 SoM. Mallow is a low-cost carrier board in the Verdin family with
a small form factor and build for volume production making it ideal for
industrial and embedded applications.

https://www.toradex.com/products/carrier-board/mallow-carrier-board

Acked-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Joao Paulo Goncalves <[e-mail]>
Signed-off-by: Francesco Dolcini <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Nishanth Menon <[e-mail]>

Documentation/devicetree/bindings/arm/ti/k3.yaml

···
           - enum:
               - toradex,verdin-am62-nonwifi-dahlia # Verdin AM62 Module on Dahlia
               - toradex,verdin-am62-nonwifi-dev    # Verdin AM62 Module on Verdin Development Board
+              - toradex,verdin-am62-nonwifi-mallow # Verdin AM62 Module on Mallow
               - toradex,verdin-am62-nonwifi-yavia  # Verdin AM62 Module on Yavia
           - const: toradex,verdin-am62-nonwifi     # Verdin AM62 Module without Wi-Fi / BT
           - const: toradex,verdin-am62             # Verdin AM62 Module
···
           - enum:
               - toradex,verdin-am62-wifi-dahlia # Verdin AM62 Wi-Fi / BT Module on Dahlia
               - toradex,verdin-am62-wifi-dev    # Verdin AM62 Wi-Fi / BT M. on Verdin Development B.
+              - toradex,verdin-am62-wifi-mallow # Verdin AM62 Wi-Fi / BT Module on Mallow
               - toradex,verdin-am62-wifi-yavia  # Verdin AM62 Wi-Fi / BT Module on Yavia
           - const: toradex,verdin-am62-wifi     # Verdin AM62 Wi-Fi / BT Module
           - const: toradex,verdin-am62          # Verdin AM62 Module