ARM: dts: silk: Drop superfluous status update for frequency override

The scif_clk device node is already enabled in r8a7794.dtsi, so there is
no need to update its status again.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7794-silk.dts

@@ -248,7 +248,6 @@ &scif2 {
 
 &scif_clk {
 	clock-frequency = <14745600>;
-	status = "okay";
 };
 
 &ether {