clk: rockchip: fix finding of maximum clock ID

If an ID of a branch's child is greater than current maximum, we should
set new maximum to the child's ID, instead of its parent's.

Fixes: 2dc66a5 ("clk: rockchip: rk3588: fix CLK_NR_CLKS usage")
Signed-off-by: Yao Zi <ziyao@disroot.org>
Link: https://lore.kernel.org/r/20240912133204.29089-2-ziyao@disroot.org
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: ziyao233

drivers/clk/rockchip/clk.c

@@ -439,7 +439,7 @@ unsigned long rockchip_clk_find_max_clk_id(struct rockchip_clk_branch *list,
 		if (list->id > max)
 			max = list->id;
 		if (list->child && list->child->id > max)
-			max = list->id;
+			max = list->child->id;
 	}
 
 	return max;