clk: qcom: dispcc-sm7150: Fix dispcc_mdss_pclk0_clk_src

Set CLK_OPS_PARENT_ENABLE to ensure the parent gets prepared and enabled
when switching to it, fixing an "rcg didn't update its configuration"
warning.

Signed-off-by: Jens Reidel <[e-mail]>
Reviewed-by: Dmitry Baryshkov <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Bjorn Andersson <[e-mail]>

drivers/clk/qcom/dispcc-sm7150.c

···
 		.name = "dispcc_mdss_pclk0_clk_src",
 		.parent_data = dispcc_parent_data_4,
 		.num_parents = ARRAY_SIZE(dispcc_parent_data_4),
-		.flags = CLK_SET_RATE_PARENT,
+		.flags = CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
 		.ops = &clk_pixel_ops,
 	},
 };