sync socfpga common u-boot dts

The dtsi for socfpga common should
turn on L2 and memory and no reason not
to do so

Signed-off-by: Brian Sune <briansune@gmail.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>

arch/arm/dts/socfpga-common-u-boot.dtsi

@@ -5,6 +5,10 @@
  * Copyright (c) 2019 Simon Goldschmidt
  */
 /{
+	memory {
+		bootph-all;
+	};
+
 	soc {
 		bootph-all;
 	};
@@ -14,6 +18,10 @@
 	bootph-all;
 };
 
+&L2 {
+	bootph-all;
+};
+
 &rst {
 	bootph-all;
 };