dt-bindings: phy: qcom,qmp: add sc8180x and sc8280xp ufs compatibles

Add compatible for the UFS PHY found in the Qualcomm SC8280XP platform
and document the required clocks for this and the SC8180X UFS PHY.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220225035105.2294599-1-bjorn.andersson@linaro.org


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