dt-bindings: arm: ux500: Document Codina-TMO

This is a U8500-based phone named Samsung Galaxy Exhibit or
Samsung SGH-T599, codenamed "Codina TMO" as it was made
for T-Mobile.

Cc: phone-devel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220222233313.1774416-1-linus.walleij@linaro.org


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>