DNI: rp1: clk: Remove CLK_IGNORE_UNUSED flags

There should be no issue in disabling the RP1 clocks as long as
the kernel knows about all consumers.

Start with removing it from rp1_register_clock, but observe that
ethernet stops working, and this seems to be due to RP1_CLK_ETH being
required. Potentially a load of other things are broken though and I
just haven't tested them.

drivers/clk/clk-rp1.c

@@ -1661,7 +1661,7 @@ static struct clk_hw *rp1_register_clock(struct rp1_clockman *clockman,
 	init.num_parents =
 		clock_data->num_std_parents + clock_data->num_aux_parents;
 	init.name = clock_data->name;
-	init.flags = clock_data->flags | CLK_IGNORE_UNUSED;
+	init.flags = clock_data->flags;
 	init.ops = &rp1_clk_ops;
 
 	clock = devm_kzalloc(clockman->dev, sizeof(*clock), GFP_KERNEL);
@@ -1909,6 +1909,7 @@ static const struct rp1_clk_desc clk_desc_array[] = {
 				.div_int_max = DIV_INT_8BIT_MAX,
 				.max_freq = 125 * MHz,
 				.fc0_src = FC_NUM(4, 6),
+				.flags = CLK_IGNORE_UNUSED,
 				),
 
 	[RP1_CLK_PWM0] = REGISTER_CLK(