ARM: dts: NSP: Move aliases to bcm-nsp.dtsi

All boards replicate the aliases node, move the aliases node to
bcm-nsp.dtsi and add all the serial and ethernet ports such that a boot
program like u-boot can populate MAC addresses accordingly.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm/boot/dts/bcm958623hr.dts

@@ -39,10 +39,6 @@
 	model = "NorthStar Plus SVK (BCM958623HR)";
 	compatible = "brcm,bcm58623", "brcm,nsp";
 
-	aliases {
-		serial0 = &uart0;
-	};
-
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};