dt-bindings: phy: qcom,qmp-usb: deprecate PIPE clock name

Deprecate the PHY node 'clock-names' property which specified that the
PIPE clock name should have a bogus "lane" suffix.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20220830112923.3725-22-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>