dt-bindings: phy: uniphier: Clean up clocks, resets, and their names using compatible string

Instead of "oneOf:" choices, use "allOf:" and "if:" to define clocks,
clock-names, resets, and reset-names that can be taken by the compatible
string.

The order of clock-names and reset-names doesn't change here.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/1648637715-19262-6-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>