ARM: dts: rockchip: Add ref clk for hdmi

The RK3036 HDMI DDC bus requires it's PHY's reference clock to be
enabled first before normal DDC communication can be carried out.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de> #rk3036-kylin
Link: https://lore.kernel.org/r/20250422070455.432666-6-andyshrk@163.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: Andy Yan

arch/arm/boot/dts/rockchip/rk3036.dtsi

@@ -398,8 +398,8 @@
 		compatible = "rockchip,rk3036-inno-hdmi";
 		reg = <0x20034000 0x4000>;
 		interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
-		clocks = <&cru  PCLK_HDMI>;
-		clock-names = "pclk";
+		clocks = <&cru PCLK_HDMI>, <&cru SCLK_LCDC>;
+		clock-names = "pclk", "ref";
 		pinctrl-names = "default";
 		pinctrl-0 = <&hdmi_ctl>;
 		#sound-dai-cells = <0>;