The pipe clock is defined in the "lane" node so there's no need to keep
adding a redundant lane-number suffix to the clock name.

Update driver to support the new binding where the pipe clock name has
been deprecated by instead requesting the clock by index.
Reviewed-by: NKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: NJohan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20220830112923.3725-31-johan+linaro@kernel.orgSigned-off-by: NVinod Koul <vkoul@kernel.org>