clk: rockchip: rk3568: Add PLL rate for 33.3MHz

Add PLL rate for 33.3 MHz to allow BTT HDMI5 screen to run at its native
mode of 800x480

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Link: https://lore.kernel.org/r/20250318181930.1178256-1-anarsoul@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: anarsoul

drivers/clk/rockchip/clk-rk3568.c

@@ -89,6 +89,7 @@ static struct rockchip_pll_rate_table rk3568_pll_rates[] = {
 	RK3036_PLL_RATE(96000000, 1, 96, 6, 4, 1, 0),
 	RK3036_PLL_RATE(78750000, 4, 315, 6, 4, 1, 0),
 	RK3036_PLL_RATE(74250000, 2, 99, 4, 4, 1, 0),
+	RK3036_PLL_RATE(33300000, 4, 111, 5, 4, 1, 0),
 	{ /* sentinel */ },
 };