phy: qcom-qmp-pcie: drop ln_shrd from v5_20 config

There is no shared lane config for v5.20 PHYs, it is only present on
SM8550 gen4x2.

Fixes: a05b6d51 ("phy: qcom-qmp-pcie: add support for sa8775p")
Cc: Mrinmay Sarkar <quic_msarkar@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230820142035.89903-4-dmitry.baryshkov@linaro.org


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