phy: qcom-qmp: fix obsolete lane comments

phy: qcom-qmp: fix obsolete lane comments

All QMP drivers but the MSM8996 and combo ones handle exactly one PHY
and the corresponding memory resources are not per-lane, but per PHY.

Update the obsolete comments.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221017065013.19647-2-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>