dt-bindings: phy: Update Pratyush Yadav's email

Emails to Pratyush Yadav bounce ("550 Invalid recipient"), so update to
match one in commit 92714596

 ("MAINTAINERS: Use my kernel.org
email").

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Pratyush Yadav <pratyush@kernel.org>
Link: https://lore.kernel.org/r/20220816132131.75591-1-krzysztof.kozlowski@linaro.org


Signed-off-by: Vinod Koul <vkoul@kernel.org>