ARM: dts: NSP: Add bcm958623hr board name to dts

This board was previously added to
Documentation/devicetree/bindings/arm/bcm/brcm,nsp.yaml
however the dts file was not updated to reflect this change. This patch
corrects bcm958623hr.dts by adding the board name to the compatible.
Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm/boot/dts/bcm958623hr.dts

@@ -37,7 +37,7 @@
 
 / {
 	model = "NorthStar Plus SVK (BCM958623HR)";
-	compatible = "brcm,bcm58623", "brcm,nsp";
+	compatible = "brcm,bcm958623hr", "brcm,bcm58623", "brcm,nsp";
 
 	chosen {
 		stdout-path = "serial0:115200n8";