ARM: dts: da850-lcdk: Sync from Linux 4.20

Re-synce the device tree files from Linux 4.20
Signed-off-by: NAdam Ford <aford173@gmail.com>

arch/arm/dts/da850-lcdk.dts

@@ -21,8 +21,8 @@
 		stdout-path = "serial2:115200n8";
 	};
 
-	memory {
-		device_type = "memory";
+	memory@c0000000 {
+		/* 128 MB DDR2 SDRAM @ 0xc0000000 */
 		reg = <0xc0000000 0x08000000>;
 	};
 
@@ -123,6 +123,10 @@
 	};
 };
 
+&ref_clk {
+	clock-frequency = <24000000>;
+};
+
 &pmx_core {
 	status = "okay";
 
@@ -175,6 +179,11 @@
 	status = "okay";
 };
 
+&sata_refclk {
+	status = "okay";
+	clock-frequency = <100000000>;
+};
+
 &sata {
 	status = "okay";
 };