arm64: dts: imx8mm: Remove video_pll1 clock rate from clk node

There are two clock-rate assignments for video_pll1, and the
only one it should really have belongs inside the lcdif node,
since it's the only consumer of this clock.  Remove it from
the clk node.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de> # Kontron BL i.MX8MM
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mm.dtsi

@@ -649,7 +649,6 @@ clk: clock-controller@30380000 {
 						<&clk IMX8MM_CLK_AUDIO_AHB>,
 						<&clk IMX8MM_CLK_IPG_AUDIO_ROOT>,
 						<&clk IMX8MM_SYS_PLL3>,
-						<&clk IMX8MM_VIDEO_PLL1>,
 						<&clk IMX8MM_AUDIO_PLL1>;
 				assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_800M>,
 							 <&clk IMX8MM_ARM_PLL_OUT>,
@@ -659,7 +658,6 @@ clk: clock-controller@30380000 {
 							<400000000>,
 							<400000000>,
 							<750000000>,
-							<594000000>,
 							<393216000>;
 			};