clk: qcom: dispcc-sdm845: Enable parents for pixel clocks

clk: qcom: dispcc-sdm845: Enable parents for pixel clocks

Add CLK_OPS_PARENT_ENABLE to MDSS pixel clock sources to ensure parent
clocks are enabled during clock operations, preventing potential
stability issues during display configuration.

Fixes: 81351776c9fb ("clk: qcom: Add display clock controller driver for SDM845")
Signed-off-by: Petr Hodina <petr.hodina@protonmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: David Heidelberg <david@ixit.cz>
Link: https://lore.kernel.org/r/20260107-stability-discussion-v2-1-ef7717b435ff@protonmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>